10 best laser bore sights

Product description

This laser will sight your gun in faster than any other method.  The process is so simple that it saves you a lot of time.  You will only need to fire 2-3 rounds of ammo so it will save you money. Find the right adapter for your caliber, shine your laser out to 25 yards, adjust cross hairs to the dot, then go fire your first 100 yard shot. Every accessory you need plus a great box to keep it all in.  The Scope/Gun leveler uses laser power by projecting a leveled laser line on the wall that you can align your crosshairs to. You can level your gun, level your cross hairs, sight in a shot gun 12-20 gauge and have extra batteries and parts if you need them.



Compatible Firearms: .22 - .50 Caliber, minimum 3-inch barrel

Power Output: 650nm, 5mW, Class IIIA

Batteries: 3-393 batteries

Battery Life: 1.5 hours constant on

Material: 6061 T6 aluminum

Weight: .75 oz., 20 g

Length/Max., Dia./Min. Dia./Height: 5 in./.52 in./.20 in., 129 mm/ 13.25 mm/ 5 mm

Range at Night: 500 yd., 457.2 m

• ACCURACY: This adapter goes over the laser bore sight and projects a red laser line that is calibrated to a bubble level
• EASE OF USE: simply slide this laser light into the barrel, shine the red dot down range 25 yards, adjust the crosshairs to the laser and then go to the range already on paper (fits 3 inch barrels)
• VERSATILITY: 12 and 20 gauge adapters included with arbors, screws, hex wrench, batteries, daylight target and a convenient case
• INCLUDES: All adapters that cover .223, 5.56, 5.56 NATO, .270, .22-250, .243, .308, .30-06, .338 Lapua, .30-30, .300 Blackout, .300 Whisper, 7.62x39, 7.62x51, 7.62x54R and many more (batteries and a target also included)

Product description

The Sightmark Laser Bore Sight provides the most convenient and accurate method for sighting in rifles of all types. Simply chamber the bore sight like a regular bullet and a laser dot will show exactly where the rifle is aiming; it’s easy to sight in any scope without firing a single shot. Live fire is only needed to fine tune the weapon being sighted in order to compensate for inconsistencies, such as bullet drop due to distance. Perfect for hunters, competitive shooters and LE, the Sightmark laser bore sight is sure to take the frustration out of sighting in almost any gun. It’s easy to use and will quickly save both time and money by avoiding prolonged live fire tests at the range; use the extra ammo for honing those shooting skills and for the hunt. A lightweight carrying pouch protects the laser for convenient use in the field. The Sightmark laser bore sight is available in several calibers and gages for use with all the most popular rifles and shotguns.

• <5Mw 632-650nm class IIIA red laser
• Reliable and durable
• Fastest gun zeroing and sighting system
• Reduce wasted cartridges and shells
• Compact and lightweight

User questions & answers

Question:	does the bore sight fit in
Answer:	The broadheads' cutting diameter is 0.5 inch. Sharp Razor arrow heads and Standard Screw-In threads for compound recurve bow arrows and crossbow bolts. Fit most arrows which have standard points insert.
Question:	What is the max range of the laser? Trying to sight in at 800 yards
Answer:	Yes it does. These blades are razor sharp. I killed a 9 pt and a 10 pt buck last season with these. And my daughters killed 2 bucks with these blades as well. Very good broadheads for all arrows and crossbow bolts
Question:	Is this thing any good? Will it get me spot on or just get me to where i have to make minor corrections
Answer:	Made in China. Fulfil By Amazon for 2days Or Ship from China for 7-15 days.Please refer to estimated delivery time at checkout.
Question:	How big is the dot at 50 & 100yds
Answer:	Yes, there is an integrated cocking sulystem in the stock. Depending on what options you order, it can come with ACUdraw Pro, ACUdraw or ACUdraw 50 Sled. If you order the elite package, it will include a case.

Product features

Sightmark Rifle Boresights

Sightmark laser boresights provide the most convenient and accurate method for sighting in all types of rifles. Simply chamber the boresight like a regular bullet and a laser dot will project to show exactly where the rifle is aiming. Sightmark laser boresights make it easy to sight in any scope without firing a single shot. Live fire is only needed to fine tune a weapon being sighted in order to compensate for inconsistencies, such as bullet drop due to distance. Perfect for hunters or competitive shooters, the Sightmark laser boresight is sure to take the frustration out of sighting in almost any firearm. It’s easy to use and will quickly save both time and money by avoiding prolonged live fire tests at the range; use the extra ammo for honing those shooting skills and for the hunt.

Sightmark Boresights

Sighting-in a new scope or double-checking zero on our favorite rifles, handguns, and crossbows? Sightmark boresights are the first, best name in boresighting tools. From universal barrel-mounted to caliber-specific in-chamber products, our boresights are designed to get you on target quickly without wasting ammo.

Carrying Case

A lightweight carrying pouch protects the laser for convenient use in the field and makes it easy to pack and travel.

Fastest gun zeroing and sighting system

Sighmark boresights use a visible red laser with a laser wavelength of 632 - 650nm and <5mW power.

Fine Adjustment Screws

The fine adjustment screws along the sides of the boresights allow the laser to hold a true center.

Product description

Sightmark laser boresights provide the most convenient and accurate method for sighting in all types of rifles. Simply chamber the boresight like a regular bullet and a laser dot will project to show exactly where the rifle is aiming. Sightmark laser boresights make it easy to sight in any scope without firing a single shot. Live fire is only needed to fine tune a weapon being sighted in order to compensate for inconsistencies, such as bullet drop due to distance. Perfect for hunters, competitive shooters, and LE officials, the Sightmark laser boresight is sure to take the frustration out of sighting in almost any firearm. It’s easy to use and will quickly save both time and money by avoiding prolonged live fire tests at the range; use the extra ammo for honing those shooting skills and for the hunt. A lightweight carrying pouch protects the laser for convenient use in the field. The Sightmark laser boresight is available in several calibers and gauges for use with almost all popular rifles and shotguns.

• <5Mw 632-650nm class IIIA red laser
• Precision accuracy
• Saves ammunition
• Reliable and durable
• Compact and lightweight

User questions & answers

Question:	Does this come with a pouch
Answer:	Yes.
Question:	Will this fit an AK
Answer:	Even if you could see it at that range, thats not how this works. This sits in your chamber- you must remove it to shoot. If you adjust your scope to hit at 800 meters ,you would then be shooting several feet high at 100. Use this to get on target at 25 yards. then adjust your scope to hit how you want for whatever range you intend to shoot. 800 yards isn't easy. Start close and work your way out. Good luck.
Question:	since the case dia is the same, and 300 is shorter, has anyone put this in a 5.56? i have both
Answer:	I had to make only minor corrections at the range when I zeroed. It is way more accurate than the universal type that you stick in the end of the barrel. I've used these for 5.56x45, 6.8 SPC, and 7.62x51 and they were all much closer on that the universal I had to use for my .458 SOCOM. If I could find one of these in .458 SOCOM Id buy it just to have in the tool box for later.
Question:	The description makes no mention of this being a laser boresight. That model number referenced by Sightmark shows it to be a laser
Answer:	If possible, try the boresight at low light (overcast, indoor, etc.) at 25 yards. The purpose is to get the first round on paper once you zero the weapon at the range and then adjust from there. Good luck!

Product features

Sightmark Rifle Boresights

Sightmark laser boresights provide the most convenient and accurate method for sighting in all types of rifles. Simply chamber the boresight like a regular bullet and a laser dot will project to show exactly where the rifle is aiming. Sightmark laser boresights make it easy to sight in any scope without firing a single shot. Live fire is only needed to fine tune a weapon being sighted in order to compensate for inconsistencies, such as bullet drop due to distance. Perfect for hunters or competitive shooters, the Sightmark laser boresight is sure to take the frustration out of sighting in almost any firearm. It’s easy to use and will quickly save both time and money by avoiding prolonged live fire tests at the range; use the extra ammo for honing those shooting skills and for the hunt.

Sightmark Boresights

Sighting-in a new scope or double-checking zero on our favorite rifles, handguns, and crossbows? Sightmark boresights are the first, best name in boresighting tools. From universal barrel-mounted to caliber-specific in-chamber products, our boresights are designed to get you on target quickly without wasting ammo.

Carrying Case

A lightweight carrying pouch protects the laser for convenient use in the field and makes it easy to pack and travel.

Fastest gun zeroing and sighting system

Sighmark boresights use a visible red laser with a laser wavelength of 632 - 650nm and <5mW power.

Fine Adjustment Screws

The fine adjustment screws along the sides of the boresights allow the laser to hold a true center.

Product description

The SL-100 uses a red laser and has approximately 2 hours continous battery life. It's guaranteed more accurate than any other boresighter. That's why the US Navy and USMC selected our boresighters, over all others, for their Aviation Unit weapons from 5.56mm to the 20mm canon on the AH-1Z Cobra Attack Helicopter. In addition, the US Navy is using our boresighter, with our special adapter, for the 25mm Gatling Gun on the new F-35 Strike Fighter. The SL-100 includes all adapters to fit .22 cal. To .50 Cal. & 20 and 12 ga. shotguns. The system also includes our Ballistic Targeting System software program to create a custom laser boresighting target for your specific rifle and ammo. All Sitelite Mag Laser Boresighters have a lifetime warranty. And, an optional app is available for your iPad and iPhone for use in the field.



Troubleshooting:

NOTE: THE BATTERY CAP THREADS & HOUSING MAY DEVELOP AN INVISIBLE OXIDATION OVER TIME, THEREFORE, THE THREADS MAY NEED TO BE BUFFED (VERY LIGHTLY) TO REMOVE THE ALUMINUM OXIDATION. IT IS RECOMMENDED TO USE STEEL WOOL OR A PENCIL ERASER TO REMOVE THE OXIDATION. THIS WILL INSURE A GOOD ELECTRICAL PATH. CHECK THIS, FIRST, IF THE LASER DOES NOT TURN ON PROPERLY.

• Guaranteed superior accuracy with a lifetime warranty
• Fits all calibers from .22 to .50 cal. plus 20 & 12 ga. Shotguns
• Class IIIa Laser Product, less than 5.0mW power output
• Includes the SRL Scope Leveler to level your crosshairs before boresighting
• Includes a free Muley Crazy DVD featuring a massive 255" Muley taken by SiteLite President Rich Langner
• Laser class IIIA, <5mW laser output

User questions & answers

Question:	Can you see the laser pretty clear in daylight
Answer:	Yes
Question:	Will it work in the Ruger
Answer:	Don't see why not. It comes with adapter o ring for most any caliber
Question:	What is the shortest barrel length that will fit the bore sight into the barrel. An NAA mini-revolver - 1-5/8" bbl? A Berreta Bobcat
Answer:	I have a Beretta 3032 tomcat and that barrel is 2.4" and it certainly does not fit. it extends 7/8 of on inch longer than the barrel. I think it would be safe to say It would be too long for your NAA Mini.
Question:	Has anyone used this on a stainless barrel? I read it uses magnets in addition to the O-rings. Wondering if this causes any problems with stainless
Answer:	I here people say "It is not PURE stainless" or real stainless is not strong enough. Its a 416 stainless meaning it has carbon in it. It is ferrous. "Real" stainless or 300 series isn't magnetic at all. Gun manufacturers don't use it because it is gummy and does not hold shape as well. Its purpose is better suited for wear resistance on static non bearing surfaces. Remington found this out the hard way on their 1911 pistols.

Product features

SiteLite Mag Laser Boresighter

The SL-100 is ideal for the average hunter. Using just two button cell batteries (included), they will last up to 1 hour (continuous use). The SL-100 uses the latest laser technology to provide superior boresighting accuracy. Super-strong magnets in the arbor securely centers the laser within the muzzle for consistent accuracy. A unique system of adapters and O-rings fit. 22 to 50 caliber handguns and rifles, 20 and 12 gauge shotguns and muzzleloaders. To boresight, level the scope with the included Scope Reticle Leveler and Leveling Target. Then input your specific rifle and ammo data into the included Ballistic Targeting System software program to create a custom laser boresighting target. Next, place the laser spot on the target, align your scope with the target crosshairs and you’re boresighted for up to 300 yards.

Product description

Perfect for hunters, competitive shooters and LE, the Sightmark 12Ga Boresight delivers exceptional accuracy for your 12Ga shotgun. At 100 yards, the device will project a 2-inch image on paper, saving you money on ammunition. Includes a carrying case, three AG13 batteries, and instructions.

• <5Mw 632-650nm class IIIA red laser
• Reliable and durable
• Fastest gun zeroing and sighting system
• Reduce wasted cartridges and shells
• Compact and lightweight

Product features

Sightmark Shotgun Boresights

Sightmark laser boresights provide the most convenient and accurate method for sighting in all types of rifles. Simply chamber the boresight like a regular bullet and a laser dot will project to show exactly where the rifle is aiming. Sightmark laser boresights make it easy to sight in any scope without firing a single shot. Live fire is only needed to fine tune a weapon being sighted in order to compensate for inconsistencies, such as bullet drop due to distance. Perfect for hunters and competitive shooters the Sightmark laser boresight is sure to take the frustration out of sighting in almost any firearm. It’s easy to use and will quickly save both time and money by avoiding prolonged live fire tests at the range; use the extra ammo for honing those shooting skills and for the hunt.

Sightmark Boresights

Sighting-in a new scope or double-checking zero on our favorite rifles, handguns, and crossbows? Sightmark boresights are the first, best name in boresighting tools. From universal barrel-mounted to caliber-specific in-chamber products, our boresights are designed to get you on target quickly without wasting ammo.

Carrying Case

A lightweight carrying pouch protects the laser for convenient use in the field and makes it easy to pack and travel.

Fastest gun zeroing and sighting system

Sighmark boresights use a visible red laser with a laser wavelength of 632 - 650nm and <5mW power.

Fine Adjustment Screws

The fine adjustment screws along the sides of the boresights allow the laser to hold a true center.

Product description

Get your rifle sighted in and save time with the simple and fast setup. Insert the laser in your chamber, close the bolt, the laser will turn on and you are ready to sight in. You will only need to fire 2-3 rounds of ammo so it will save you money. Find the right laser and sleeve setup for your caliber .223, .308, .30-06 etc., shine your laser out to 25 yards, adjust the cross hairs to the dot, then go fire your first 100 yard shot. The laser bore sight will work with scopes, iron sights or even sight in a laser sight. This is the perfect setup to sight in your favorite hunting rifle, then you can check zero later without firing a shot. This unit works great with flash suppressors and muzzle breaks.    



Laser: .223/.556 fits in Caliber Sleeves

Caliber Sleeves: .308/.243/7mm-08 and .30-06/.25-06/.270

Machined Brass to SAMMI specifications

Soft brass will not harm the firearms steel chambers

Fast drop in chamber setup and activation



What’s in the box

1 .223 laser

1 .308/.243/7mm-08 sleeve

1 .30-06/.25-06/.270 sleeve

1 laser push rod

1 set of 393 batteries

• POPULAR RIFLE KIT includes all adapters the laser is a 556 / 223 and when put in a chamber it will automatically turns on the two other sleeves will fit all the other rifle calibers listed
• MACHINED BRASS to SAMMI specifications are extremely accurate the laser shines from where the bullet will come from so it ensures the shots are on target the soft brass will not harm the chamber
• 223 LASER BORE SIGHT will sight in new scopes rings bases that were just mounted on the rifle. This system will also sight in laser sights and iron sights and muzzle breaks
• ADAPTER CARTRIDGES quickly accept the laser 223 inside of it to expanding to the next caliber with the included push rod quickly swap the laser out with the two the sleeves or just use the 556 nato laser
• BRIGHTEST AND MOST POWERFUL laser we are legally allowed to produce. The bright laser dot can be seen over 100 yards away at night. Power Output: 630 - 670nm, <5mW, Class: IIIa

User questions & answers

Question:	Can this be used with the laser lyte trainer target quick timer
Answer:	This thing was junk! Dropped it on the floor once and it never worked again... complete waste of money. Buy another brand.
Question:	how far out can you see the laser, can you use it to site in a scope at 100 yards out on a target
Answer:	Yes
Question:	Will this work with 6.5 creedmoor
Answer:	no idea. bought a 300 wsm sight. I can tell you SSI customer service sucks. Will never buy another. Batteries were dead on arrival. they would not replace.
Question:	Will one of these laser bore sighters work in a .303 british caliber for a 1944 lee enfield mk no
Answer:	It is not for a 22LR.. the bore sight is for a 22-250 which is much larger caliber
Question:	Will this fit a .22 Chambered AR
Answer:	Yes, the 8mmx57 is refering to the ammunition as the standard 8mm rounds are 8x57mm, I believe the (r) is for the .323 diameter for head spacing as some were .318 diameter. I used this in my 1945 mauser with no problems, to my surprize with just bore sighting it was very accurate.
Question:	Will this work in a 6.5 creedmoor
Answer:	yes nice little pouch and battery's.. also works well in 223
Question:	Does this bore sighter fit both .22LR and 233 rifles
Answer:	It will fit but very loosely in the chamber. Not what u want when using a bore sight. 300 Blackout is 7.62x35, AK-47 is 7.62x39. Personally I would not boresight a AK-47 with a 300 Blackout boresight! Hope this helps.
Question:	Why would this NOT work in a semi auto .22LR? Shouldnt it slide right into chamber if bolt is locked open
Answer:	Let's look at the converse. Putting a 5.56NATO boresight on a 300BLK barrel, and the "casing" wiggles within the chamber. And that's with a hex tool coaxing it about! This shouldn't happen. That tells me that the 300BLK boresight is going to be thicker at the barrel end than at the bolt, and therefore neither will seat if applied to the other. Like you, I need both. Unfortunately, this one (300BLK) is hard to find at the moment.
Question:	will this 8mm x 57 (r) work with a standard 8mm Mauser? I am not sure what the x 57 (r) means
Answer:	It's really sad that it's come to this nowadays, but I have to give you credit for being a savy buyer! Most of us gun nuts know this stuff and Sightmark, although not having a reputation for being "top of the line," does produce good products and certainly is not a company that would engage in those type of business practices that you are worried about. However, there are so many dishonest individuals out there selling imitation junk and getting away with it by skirting the rules because technically they never said it was a "laser boresighter" even though they copied the exact design of one that I commend you on your thorough investigative fact checking before purchasing! Sorry, I just realized that your post was 3 years ago but I still meant what I said! - Mike

Product features

Sightmark Rifle Boresights

Sightmark laser boresights provide the most convenient and accurate method for sighting in all types of rifles. Simply chamber the boresight like a regular bullet and a laser dot will project to show exactly where the rifle is aiming. Sightmark laser boresights make it easy to sight in any scope without firing a single shot. Live fire is only needed to fine tune a weapon being sighted in order to compensate for inconsistencies, such as bullet drop due to distance. Perfect for hunters or competitive shooters, the Sightmark laser boresight is sure to take the frustration out of sighting in almost any firearm. It’s easy to use and will quickly save both time and money by avoiding prolonged live fire tests at the range; use the extra ammo for honing those shooting skills and for the hunt.

Sightmark Boresights

Sighting-in a new scope or double-checking zero on our favorite rifles, handguns, and crossbows? Sightmark boresights are the first, best name in boresighting tools. From universal barrel-mounted to caliber-specific in-chamber products, our boresights are designed to get you on target quickly without wasting ammo.

Carrying Case

A lightweight carrying pouch protects the laser for convenient use in the field and makes it easy to pack and travel.

Fastest gun zeroing and sighting system

Sighmark boresights use a visible red laser with a laser wavelength of 632 - 650nm and <5mW power.

Fine Adjustment Screws

The fine adjustment screws along the sides of the boresights allow the laser to hold a true center.

Lights and Lasers

Weapon lasers are constructed of heavy duty material and ensure fast acquisition in a those dire moments

Target Practice

Laserlyte offers a wide variety of training tools including laser cartridges and audible digital targets for indoor dry fire practice

Sight-In Tools

Sight in your weapons with the bore sighting kits that include everything needed to get on target

Product description

Chamber the Sightmark .50 Cal Green Boresight in your .50 cal rifle like a regular cartridge, and a red laser dot shows exactly where you're aiming. Ideal for hunters, competitive shooters and LE, this device significantly reduces wasted cartridges and shells. Simply adjust your sights or scope, and save your extra ammo for the hunt. Includes a carrying case, one CR2 battery, and instructions.

• <5Mw 532nm class IIIA green laser
• Precision accuracy due to compact and lightweight size
• Reliable and durable boresight that is easy to pack and travel
• Fastest gun zeroing and sighting system
• Reduce wasted cartridges and shells

User questions & answers

Question:	is this for a thompson centre black powder
Answer:	The target will react to this laser. However, it will give you an inaccurate representation because the laser stays constantly on.
Question:	Is this a red or green laser
Answer:	100 yards at night? Any state let you legally hunt game animals after official sunset? Otherwise the OP would just start at 20 or 25 yards in the daylight to get on paper.
Question:	Can this be seen in daylight outdoors and at what max distance
Answer:	No. We recommend the MBS-1 to bore sight 6.5 Creedmoor firearms.
Question:	Will this work in the 500 Smith&Wesson revolver
Answer:	No. However if your .303 has at least three inches of barrel space the LaserLyte Universal Laser Bore Sight (found here: https://amzn.to/2RiidaK) will be compatible.

Product features

Sightmark Rifle Boresights

Sightmark laser boresights provide the most convenient and accurate method for sighting in all types of rifles. Simply chamber the boresight like a regular bullet and a laser dot will project to show exactly where the rifle is aiming. Sightmark laser boresights make it easy to sight in any scope without firing a single shot. Live fire is only needed to fine tune a weapon being sighted in order to compensate for inconsistencies, such as bullet drop due to distance. Perfect for hunters or competitive shooters, the Sightmark laser boresight is sure to take the frustration out of sighting in almost any firearm. It’s easy to use and will quickly save both time and money by avoiding prolonged live fire tests at the range; use the extra ammo for honing those shooting skills and for the hunt.

Sightmark Boresights

Sighting-in a new scope or double-checking zero on our favorite rifles, handguns, and crossbows? Sightmark boresights are the first, best name in boresighting tools. From universal barrel-mounted to caliber-specific in-chamber products, our boresights are designed to get you on target quickly without wasting ammo.

Carrying Case

A lightweight carrying pouch protects the laser for convenient use in the field and makes it easy to pack and travel.

Fastest gun zeroing and sighting system

Sighmark boresights use a visible red laser with a laser wavelength of 632 - 650nm and <5mW power.

Fine Adjustment Screws

The fine adjustment screws along the sides of the boresights allow the laser to hold a true center.

Product description

Get meticulous accuracy with the most exacting tolerance specifications in the sighting industry. From the very smallest to the largest 12 gauge casing, our precision machined caliber specific sighters deliver unparalleled results every single time.

• Precision machined brass casing for optimum accuracy
• Caliber specific
• Factory aligned
• Batteries Included
• Max Output: 5mW, Class IIIa Laser

User questions & answers

Question:	Is the laser adjustable? From the image it looks like it has 2 set screws
Answer:	22 grams

Product description

Description:

Excellent Performance:The Cherish XT bore sights features versatile tool to ensure an accurate aim and it is great ideal for hunting, Works good when sticking to pistols and rifles



Product specifications：

Wavelength: 632-650nm

Maximum output power: Less than 5mW

Battery: 3x LR41

Class: IIIR

Power: Less than 5mW

Range: 15-100 yards

Dot size: 2" @ 100 yards

Weight: 10.2g / 0.36oz



Instructions &Attention:

1. Your new Cartridge Laser Bore sighter is designed for the chamber sizes marked on the bore sighter as well as on the packing box. DO NOT attempt to insert this bore sighter into a different size.

2. Chamber: Doing so may cause damage to the bore sighter and the gun chamber.

3. Do not dry-fire your firearm while the boresighter is inserted. Doing so may cause damage to the bore sighter.



BATTERY INSTALLATION:

Twist the end cap of the boresighter counter clockwise to open the battery housing. Insert the three batteries into the battery negative end first. Be sure that the batteries are all facing in the proper direction to ensure proper function of your bore sighter. Turn the end cap clockwise until it is slightly snug. At this point you should visibly see the red laser. To turn the boresighter off simply twist the end cap counter clock wise until you no longer see the red laser. If you plan to store the bore sighter for long time without use, remove the batteries to preserve power.



Packing List:

Hunting Tactical Bore Sight kit * 1

LR41 Battery * 3

English User Manual * 1

• 1. Easy to pack and travel.Easily fits in the chamber for instant training sessions. Class IIIa 635nM Less Than 5mW Avoid Direct Eye Exposure to Beam
• 2. Fastest zeroing and sighting system.Reduce wasted cartridges.Save time and ammunition. LED type red laser: 635-655mm in wavelength; Power: less than 5 W
• 3. Casing is 100% high quality brass with precision preset laser for accurate sighting again and again.
• 4. The designed is not have ON/OFF Switch.Insert the batteries and screw the cap to turn on,remove the batteries to turn off. DO NOT attempt to insert this Bore sighter into a different size.
• 5. 308 Laser Bore Sighter Cartridge provides the most convenient and accurate method for sighting in 308 Rifles. 308 Winchester Laser Boresighter for Professional hooters,hunting lovers, gun trainer.

Product description

The Sightmark Laser Bore Sight provides the most convenient and accurate method for sighting in rifles of all types. Simply chamber the bore sight like a regular bullet and a laser dot will show exactly where the rifle is aiming; it’s easy to sight in any scope without firing a single shot. Live fire is only needed to fine tune the weapon being sighted in order to compensate for inconsistencies, such as bullet drop due to distance. Perfect for hunters, competitive shooters and LE, the Sightmark laser bore sight is sure to take the frustration out of sighting in almost any gun. It’s easy to use and will quickly save both time and money by avoiding prolonged live fire tests at the range. A lightweight carrying pouch protects the laser for convenient use in the field. The Sightmark laser bore sight is available in several calibers and gages for use with all the most popular rifles and shotguns.

• <5Mw 632-650nm class IIIA red laser
• Precision accuracy
• Fastest gun zeroing and sighting system
• Easy to pack and travel
• Comes with a carrying case

User questions & answers

Question:	Does this work on a
Answer:	No this is for the 50 BMG. Will not work on the Thompson Center.
Question:	will it work in a
Answer:	In the subject it states Green so I would imagine it would be Green.
Question:	Does it work with 300 blackout
Answer:	You might be able to use up to 100 yard but it if you go further is going to be a little difficult since the daylight will be affecting the laser light .
Question:	What size and # for battery
Answer:	No, this boresight is designed for the .50BMG.

Product features

Sightmark Rifle Boresights

Sightmark laser boresights provide the most convenient and accurate method for sighting in all types of rifles. Simply chamber the boresight like a regular bullet and a laser dot will project to show exactly where the rifle is aiming. Sightmark laser boresights make it easy to sight in any scope without firing a single shot. Live fire is only needed to fine tune a weapon being sighted in order to compensate for inconsistencies, such as bullet drop due to distance. Perfect for hunters or competitive shooters, the Sightmark laser boresight is sure to take the frustration out of sighting in almost any firearm. It’s easy to use and will quickly save both time and money by avoiding prolonged live fire tests at the range; use the extra ammo for honing those shooting skills and for the hunt.

Sightmark Boresights

Sighting-in a new scope or double-checking zero on our favorite rifles, handguns, and crossbows? Sightmark boresights are the first, best name in boresighting tools. From universal barrel-mounted to caliber-specific in-chamber products, our boresights are designed to get you on target quickly without wasting ammo.

Carrying Case

A lightweight carrying pouch protects the laser for convenient use in the field and makes it easy to pack and travel.

Fastest gun zeroing and sighting system

Sighmark boresights use a visible red laser with a laser wavelength of 632 - 650nm and <5mW power.

Fine Adjustment Screws

The fine adjustment screws along the sides of the boresights allow the laser to hold a true center.