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🎯 Sight it right, every time—no shots wasted, just pure precision.
The COSMOING Scope Boresighter Kit is a precision optical tool designed for both handguns and rifles, compatible with calibers ranging from .177 to .50. Featuring an adjustable arbor system, a 20x20 grid reticle, and 16 alignment studs, it enables fast, ammo-free scope sighting indoors or outdoors. Packaged with a leather holster and hard case, this metal-built kit streamlines zeroing your firearm with professional accuracy and portability.
| ASIN | B09X2LY9WC |
| Best Sellers Rank | #103,405 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #123 in Hunting Boresighters |
| Brand | COSMOING |
| Brand Name | COSMOING |
| Color | Black |
| Compatible Devices | Handgun, Rifle |
| Customer Reviews | 4.0 out of 5 stars 77 Reviews |
| Item Highlight | From .177 to .50 Caliber, Precision Firearm Bore Sighting, Optical Bore Sighter Kit with Arbors |
| 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!!
E**T
Good
As expected
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.
A**R
Rods are not correct size
.22 cal would not work in my barrel tried it on 2 different ones and thought ok i can make the .17 work nope too sloppy.
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 !!!
D**R
Firearms enthusiast
Very happy with the quality of the product & the short time I had to wait for it to show up.
L**N
Guns
Great buy
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 .
Trustpilot
4 days ago
3 weeks ago