--- product_id: 491124332 title: "Scope Boresighter Kit" brand: "cosmoing" price: "51606CFA" currency: XOF in_stock: true reviews_count: 8 category: "Cosmoing" url: https://www.desertcart.sn/products/491124332-scope-boresighter-kit store_origin: SN region: Senegal --- # Precision alignment for perfect zero Compact leather holster for on-the-go Adjustable arbors fit 13 calibers Scope Boresighter Kit **Brand:** cosmoing **Price:** 51606CFA **Availability:** ✅ In Stock ## Summary > 🎯 Nail your shot before you even pull the trigger! ## Quick Answers - **What is this?** Scope Boresighter Kit by cosmoing - **How much does it cost?** 51606CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/491124332-scope-boresighter-kit) ## Best For - cosmoing enthusiasts ## Why This Product - Trusted cosmoing brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Easy Step-by-Step Setup:** Intuitive installation means you’re ready to shoot with confidence in minutes. - • **Precision Grid Collimator:** 20x20 grid ensures exact reticle-to-barrel alignment every time. - • **Universal Caliber Compatibility:** Includes arbors for .177 to .50 caliber—one kit fits all your firearms. - • **Zero In Without a Single Bullet:** Save ammo and time by aligning your scope indoors or outdoors effortlessly. - • **Durable Metal Build with Leather Holster:** Rugged metal construction paired with a stylish carrying case for professionals on the move. ## Overview The COSMOING Scope Boresighter Kit is a precision firearm alignment tool designed for both handguns and rifles, compatible with calibers ranging from .177 to .50. Featuring adjustable metal arbors, a 20x20 grid collimator, and a durable leather holster, it enables quick, ammo-free zeroing of scopes indoors or outdoors, saving time and enhancing shooting accuracy. ## Description desertcart.com : COSMOING Scope Boresighter Kit | From .177 to .50 Caliber, Precision Firearm Bore Sighting, Optical Bore Sighter Kit with Arbors : Sports & Outdoors Review: 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 Review: Firearms enthusiast - Very happy with the quality of the product & the short time I had to wait for it to show up. ## Features - Indoor or outdoor without shooting a single bullet. Bore Sighter Kit with Adjustable Arbor. - Arbors including for .177, .22, 6mm, .25, 6.5mm, .27, 7mm, .30, .32, .338, .35, .375, .44, .45, .50. All packaged in a leather holster. - Boresighter makes sighting in guns much easier by aligning the scope's reticle with the barrel. The boresighter will help you get on paper without wasting shots. - All in One Kit: Works for handguns and rifles. 30mm Collimator,20*20 grids; 16 Studs and Carrying hard case included. - Use Steps: 1）Select the appropriate bore arbor and insert the notched. 2）Hand tighten the screw to attach firmly the boresighter. 3）Insert the other end of the stud into the muzzle. 4）Rotate the boresighter until the grid lines match vertically. 5）Adjust the windage and elevation dials of scope so the reticle inside of both of these is equal. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09X2LY9WC | | Best Sellers Rank | #234,296 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #190 in Hunting Boresighters | | Brand | COSMOING | | Brand Name | COSMOING | | Color | Black | | Compatible Devices | Handgun, Rifle | | Customer Reviews | 4.0 out of 5 stars 78 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 | ## Product Details - **Brand:** COSMOING - **Color:** Black - **Compatible Devices:** Handgun, Rifle - **Magnification Minimum:** 20 x - **Manufacturer:** COSMOING - **Material:** Metal - **Mounting Type:** Picatinny Mount - **Sport:** Hunting - **Style:** Traditional - **UPC:** 751717204990 ## Images ![Scope Boresighter Kit - Image 1](https://m.media-amazon.com/images/I/81m0u5xew7L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Sick of lasers *by M***D on April 27, 2024* I'm sick of lasers their grate for wood working but not for this .this product works perfectly and is easy to use ### ⭐⭐⭐⭐⭐ Firearms enthusiast *by D***R on November 24, 2025* Very happy with the quality of the product & the short time I had to wait for it to show up. ### ⭐⭐⭐⭐ Can be a lil annoying *by S***N on October 18, 2025* 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 . ## Frequently Bought Together - COSMOING Scope Boresighter Kit from .177 to .50 Caliber Precision Firearm Bore Sighting Optical Bore Sighter Kit with Arbors - Pridefend Bubble Level, Scope Mounting Kit, Precision Scope Level Bubble Clip and Bubble Levels and Storage Case for Magnetic Universal Leveling Tool - Professional Laser Bore Sighting Kit： Green or Red Bore Sight with 50 Adapters - Multiple Caliber Bore Sighter Perfectly Choice for All Gun - .17 Cal to 12GA Rifle Pistol Boresighter --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/491124332-scope-boresighter-kit](https://www.desertcart.sn/products/491124332-scope-boresighter-kit) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-09-16*