🎯 Zero in like a pro—no bullets wasted, just pure precision.
The COSMOING Scope Boresighter Kit offers professional-grade bore sighting for handguns and rifles from .177 to .50 caliber. Featuring 16 adjustable arbors, a 20x20 grid collimator, and a durable metal build, it enables precise scope alignment without firing a shot. Packaged with a leather holster and hard case, this kit is designed for efficient, ammo-saving zeroing both indoors and outdoors.
| Brand | COSMOING |
| Color | Black |
| Sport | Hunting |
| Material | Metal |
| Magnification Minimum | 20 x |
| Compatible Devices | Handgun, Rifle |
| Mounting Type | Picatinny Mount |
| Night vision | No |
| Manufacturer | COSMOING |
| UPC | 751717204990 |
| Item Package Dimensions L x W x H | 5.87 x 5.79 x 2.13 inches |
| Package Weight | 0.74 Kilograms |
| Brand Name | COSMOING |
| Part Number | BS005.us |
| Size | Basic Boresighter Kit |
J**P
Will not work for ar rifles.
Good product just didn’t work for me
G**V
Works only on sight/scope height of 1” to 2”
Basically its only made for hunting scopes/RDS thats from 1”- 2” high from bore. Not made for Ar15/10. This old bore sight technology is still the best imo. Its been around for like 40 years. It’ll get on paper. Must remove muzzle brake/flash hider to get it to work properly.
A**N
Best one I've purchased
Besides being the easiest one to setup and use, it's been the most accurate. With my 22lr I was 1 click low and one right at 100 yards, my 270 was dead on at 200 and an inch high at 100 which is to be expected with that caliber, haven't used it for much else yet, but 100% satisfied
B**.
Pretty good
Not great but not terrible
M**D
Sick of lasers
I'm sick of lasers their grate for wood working but not for this .this product works perfectly and is easy to use
S**K
Didn’t work for me
The spring catches on the rifling and wont stay vertical. Every time you set it it pops back into the grove of the rifling by the time to go to look through the scope
S**8
Works as advertised
Pretty basic bore sight. But it works as advertised
J**S
Good kit for the price
Had to hand tighten scope in it's mount to make grid level. Zeroed in two shots!
Trustpilot
4 days ago
2 months ago
