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🎯 Zero in like a pro—no wasted shots, just pure precision.
The COSMOING Scope Boresighter Kit is a versatile, precision tool designed to align your firearm’s scope with the barrel quickly and accurately. Compatible with calibers from .177 to .50, it features adjustable arbors, a 30mm collimator with a 20x20 grid, and comes packaged in a durable leather holster. Ideal for both handguns and rifles, this kit streamlines sighting-in without firing a single bullet, making it an essential accessory for hunters and shooting enthusiasts seeking efficiency and accuracy.
| ASIN | B09X2LY9WC |
| Best Sellers Rank | #139,316 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #134 in Hunting Boresighters |
| Brand | COSMOING |
| Brand Name | COSMOING |
| Color | Black |
| Compatible Devices | Handgun, Rifle |
| Customer Reviews | 4.0 out of 5 stars 75 Reviews |
| Magnification Minimum | 20 x |
| Manufacturer | COSMOING |
| Manufacturer Part Number | BS005.us |
| Material | Metal |
| Material Type | Metal |
| Mounting Type | Picatinny Mount |
| Product Style | Traditional |
| Sport | Hunting |
| Sport Type | Hunting |
| Style | Traditional |
| UPC | 751717204990 |
R**T
Great product
Works great, had my scope sighted in less than 5 minutes!!
S**N
Can be a lil annoying
It’s a close copy of the old tasco boresighter , it uses round (approx. .030“) spring stock in each rod to hold it in alignment w/in the bore and in some of my rifles when the grid is centered this same spring will be on the the edge of the rifling land and will “trip” off the land’ edge and spoil the alignment if bumped or sometime’s on its’s own , Hence the annoyance. It’s workable just annoying . The old tasco & bushnell’s had expandable guide rods that locked in place providing a sturdier foundation. BUT those are hard to find for a fair price ! So the annoyance can be lived with and a lil tinkering could solve it. All in all it is a good investment .
J**P
Will not work for ar rifles.
Good product just didn’t work for me
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**L
Excelente colimador optico multiple de buena calidad y buena relación costo - calidad !!!
Excelente colimador optico de buena calidad y multiples funciones para diversos calibres; buena relación costo - calidad !!!
B**S
Bore sight kit
Not of the best quality but works well. My son was very impressed in the difference it made in his shooting.
E**T
Good
As expected
Trustpilot
2 months ago
1 week ago