How do i know lazer is center?

Lay a magazine down flat on a table and place the laser in the magazine side groove. Point the laser at the wall, ideally 25m away but as far as the room allows. Rotate the laser in the magazine groove while observing the point on the wall. If the point remains constant the laser is center.

Do you close the bolt on this to secure it in the barrel when sighting?

Yes, but close it gently so that the sight is securely in place.

Can this laser aim point be adjusted or calibrated?

Yes, it can. It has adjustment screws. You will need a lathe or floor drill press with a straight quill. Turn it on and clamp it in the chuck, then slowly by hand, rotate the chuck. If it is aligned correctly, the laser point will not move. If it goes in a circle, it is not aligned. Adjust the setscrews until the laser dot does not move when the chuck is rotated. Do NOT turn the drill or lathe on! The further away you can set the laser dot, the more accurately you can align it. You cannot align it while it is in your firearm.

Why does it say “9mm rem gauge” ?? Is it for 9mm caliber pistols or for a shotgun?

It is for 9mm Parabellum ( 9x19mm). Works great.

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CVLIFE Bore Sight Laser 223 5.56mm/9mm/.243.308/12Gauge/7.62x39mm/.45acp Red Laser Bore Sighter with Batteries

Product ID: 48357680

Details

Brand
CVLIFE
Color
yellow
Compatible Devices
Handgun
Magnification Minimum
1 x 6 x
Material
Alloy Steel
Mounting Type
Picatinny

🎯Accurate sighting 15-100 yards

🔴Class IIIA <5mW red laser

⚙️Precision brass construction

20074CFA

Duties & taxes included

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Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎯 Lock your aim, lead the pack with CVLIFE precision!

READY OUT OF THE BOX - Includes batteries so you’re set to sight in immediately
COMPACT RUGGED DESIGN - Sturdy brass alloy fits perfectly in .223 bores for reliable use
ZERO IN WITH LASER PRECISION - Cut your zeroing time and ammo waste dramatically
TRUSTED BY PROS ENTHUSIASTS - Top 10 in hunting boresighters with 4.4-star rating from nearly 10k users
VERSATILE CALIBER COMPATIBILITY - Works seamlessly with .223, 5.56mm, 9mm, .308, 12 Gauge & more

The CVLIFE Bore Sight Laser is a compact, Class IIIA red laser boresighter designed for rapid, accurate zeroing across multiple calibers including .223, 5.56mm, 9mm, and more. Built with durable brass alloy, it offers a sighting range of 15 to 100 yards and comes ready to use with included batteries. Highly rated and favored by hunters and shooting pros, it reduces wasted ammo and speeds up sighting for a competitive edge.

Specifications

ASIN	B07545BKZW
Best Sellers Rank	#4,910 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #9 in Hunting Boresighters
Brand Name	CVLIFE
Color	yellow
Compatible Devices	Handgun
Customer Reviews	4.4 4.4 out of 5 stars (9,877)
Eye Relief	44.5 Millimeters
Item Dimensions L x W x H	1.75"L x 0.22"W x 1.75"H
Magnification Minimum	1 x, 6 x
Manufacturer	NANTONG CHENGXIN OPTICAL INSTRUMENT CO., LTD.
Manufacturer Part Number	US5700001
Material Type	Alloy Steel
Model Name	Laser bore sight 223 5.56mm
Model Number	223cal
Mounting Type	Picatinny Mount
Night vision	No
Objective Lens Diameter	9.5 Millimeters
Product Style	223 5.56mm
Reticle Type	laser dot
Sport Type	Airsoft, Hunting
Unit Count	1.0 Count

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