---
product_id: 491124332
title: "Scope Boresighter Kit from .177 to .50 Caliber Precision Firearm Bore Sighting Optical Bore Sighter Kit with Arbors"
brand: "cosmoing"
price: "₪221"
currency: ILS
in_stock: true
reviews_count: 8
category: "Cosmoing"
url: https://www.desertcart.co.il/products/491124332-scope-boresighter-kit-from-177-to-50-caliber-precision-firearm
store_origin: IL
region: Israel
---

# Compact leather holster & hard carrying case Precision alignment with 20x magnification grid 16 adjustable arbors from .177 to .50 caliber Scope Boresighter Kit from .177 to .50 Caliber Precision Firearm Bore Sighting Optical Bore Sighter Kit with Arbors

**Brand:** cosmoing
**Price:** ₪221
**Availability:** ✅ In Stock

## Summary

> 🎯 Lock in your shot before you pull the trigger!

## Quick Answers

- **What is this?** Scope Boresighter Kit from .177 to .50 Caliber Precision Firearm Bore Sighting Optical Bore Sighter Kit with Arbors by cosmoing
- **How much does it cost?** ₪221 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/products/491124332-scope-boresighter-kit-from-177-to-50-caliber-precision-firearm)

## 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

- • **Durable & Portable:** All-metal construction housed in a sleek leather holster and rugged hard case for on-the-go use.
- • **User-Friendly Setup:** Step-by-step adjustable arbor system ensures quick, secure bore alignment every time.
- • **Optimize Your Hunting Game:** Get on paper fast and fine-tune windage and elevation with 20x magnification grids.
- • **Pinpoint Accuracy in Minutes:** Sight your scope perfectly without firing a single bullet, saving time and ammo.
- • **Universal Caliber Compatibility:** Includes 16 arbors covering .177 to .50 caliber for handguns and rifles alike.

## Overview

The COSMOING Scope Boresighter Kit is a precision optical tool designed for quick and accurate scope alignment across a wide range of calibers (.177 to .50). Featuring 16 adjustable arbors, a 20x magnification grid, and durable metal construction, it enables hunters and shooters to zero their scopes indoors or outdoors without firing a single round. Packaged with a leather holster and hard carrying case, this kit streamlines sighting-in for both handguns and rifles, enhancing shooting efficiency and saving valuable ammo.

## Description

Product description ATTENTION 1. The gun is not loaded, the action is open, the muzzle points to the safe direction. Always use a safe gun handler. 2. If the internal thread is not easily inserted, remove and verify that the correct threaded aperture is used. 3. Eye and ear protection devices are strongly recommended. You must always use the Secure Cannery Handler.

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 | #151,158 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #139 in Hunting Boresighters |
| Brand | COSMOING |
| Brand Name | COSMOING |
| Color | Black |
| Compatible Devices | Handgun, Rifle |
| Customer Reviews | 4.2 out of 5 stars 72 Reviews |
| Magnification Minimum | 20 x |
| Manufacturer | COSMOING |
| Manufacturer Part Number | BS005.us |
| Material | Metal |
| Material Type | Metal |
| Mounting Type | Picatinny Mount |
| Night vision | No |
| Product Style | Traditional |
| Sport | Hunting |
| Sport Type | Hunting |
| Style | Traditional |
| UPC | 751717204990 |

## Product Details

- **Brand:** COSMOING
- **Color:** Black
- **Style:** Traditional
- **Sport:** Hunting
- **Material:** Metal
- **Magnification Minimum:** 20 x
- **Compatible Devices:** Handgun, Rifle
- **Mounting Type:** Picatinny Mount
- **Night vision:** No
- **Manufacturer:** COSMOING

## Images

![Scope Boresighter Kit from .177 to .50 Caliber Precision Firearm Bore Sighting Optical Bore Sighter Kit with Arbors - Image 1](https://m.media-amazon.com/images/I/81m0u5xew7L.jpg)
![Scope Boresighter Kit from .177 to .50 Caliber Precision Firearm Bore Sighting Optical Bore Sighter Kit with Arbors - Image 2](https://m.media-amazon.com/images/I/71PpUg05j+L.jpg)
![Scope Boresighter Kit from .177 to .50 Caliber Precision Firearm Bore Sighting Optical Bore Sighter Kit with Arbors - Image 3](https://m.media-amazon.com/images/I/615bZvgQp-L.jpg)
![Scope Boresighter Kit from .177 to .50 Caliber Precision Firearm Bore Sighting Optical Bore Sighter Kit with Arbors - Image 4](https://m.media-amazon.com/images/I/61EDrXn+kOL.jpg)
![Scope Boresighter Kit from .177 to .50 Caliber Precision Firearm Bore Sighting Optical Bore Sighter Kit with Arbors - 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 .

### ⭐⭐⭐⭐⭐ Excelente colimador optico multiple de buena calidad y buena relación costo - calidad !!!
*by S***L on April 18, 2026*

Excelente colimador optico de buena calidad y multiples funciones para diversos calibres; buena relación costo - calidad !!!

## 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.il/products/491124332-scope-boresighter-kit-from-177-to-50-caliber-precision-firearm](https://www.desertcart.co.il/products/491124332-scope-boresighter-kit-from-177-to-50-caliber-precision-firearm)

---

*Product available on Desertcart Israel*
*Store origin: IL*
*Last updated: 2026-07-06*