--- product_id: 491124332 title: "Scope Boresighter Kit" brand: "cosmoing" price: "KSh15686" currency: KES in_stock: true reviews_count: 8 category: "Cosmoing" url: https://www.desertcart.co.ke/products/491124332-scope-boresighter-kit store_origin: KE region: Kenya --- # Compact leather holster for on-the-go Precision alignment for perfect sighting Adjustable arbors fit 13 calibers Scope Boresighter Kit **Brand:** cosmoing **Price:** KSh15686 **Availability:** ✅ In Stock ## Summary > 🎯 Zero in like a pro—no wasted shots, just pure precision. ## Quick Answers - **What is this?** Scope Boresighter Kit by cosmoing - **How much does it cost?** KSh15686 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/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 - • **Effortless Setup:** Simple 5-step process gets you on target fast, minimizing frustration and maximizing range time. - • **Durable & Portable:** All-metal construction housed in a sleek leather holster—ready for indoor or outdoor use. - • **Grid-Precision Alignment:** 20x20 grid and 30mm collimator ensure your reticle perfectly matches the barrel’s bore. - • **Pinpoint Accuracy in Minutes:** Sight in your scope without firing a single bullet, saving time and ammo. - • **Universal Caliber Compatibility:** Includes adjustable arbors for calibers from .177 to .50, covering handguns and rifles alike. ## Overview 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. ## 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: Great product - Works great, had my scope sighted in less than 5 minutes!! Review: 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 . ## 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 | #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 | ## 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) ![Scope Boresighter Kit - Image 2](https://m.media-amazon.com/images/I/71PpUg05j+L.jpg) ![Scope Boresighter Kit - Image 3](https://m.media-amazon.com/images/I/615bZvgQp-L.jpg) ![Scope Boresighter Kit - Image 4](https://m.media-amazon.com/images/I/61EDrXn+kOL.jpg) ![Scope Boresighter Kit - Image 5](https://m.media-amazon.com/images/I/51bkvtkrl9L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great product *by R***T on October 28, 2025* Works great, had my scope sighted in less than 5 minutes!! ### ⭐⭐⭐⭐ 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 . ### ⭐⭐⭐⭐⭐ Will not work for ar rifles. *by J***P on March 9, 2025* Good product just didn’t work for me ## 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.co.ke/products/491124332-scope-boresighter-kit](https://www.desertcart.co.ke/products/491124332-scope-boresighter-kit) --- *Product available on Desertcart Kenya* *Store origin: KE* *Last updated: 2026-08-08*