---
product_id: 270253835
title: "360 Tactical Universal 21mm Weaver Base Adapter Converter Barrel Scope Heavy Duty Scope"
brand: "360 tactical"
price: "4261 kr"
currency: ISK
in_stock: true
reviews_count: 8
category: "360 Tactical"
url: https://www.desertcart.is/products/270253835-360-tactical-universal-21mm-weaver-base-adapter-converter-barrel-scope
store_origin: IS
region: Iceland
---

# 3-screw clamp for secure fit Lightweight aluminum build Durable matte black weatherproof finish 360 Tactical Universal 21mm Weaver Base Adapter Converter Barrel Scope Heavy Duty Scope

**Brand:** 360 tactical
**Price:** 4261 kr
**Availability:** ✅ In Stock

## Summary

> 🔫 Elevate your tactical edge with rock-solid, versatile mounting power!

## Quick Answers

- **What is this?** 360 Tactical Universal 21mm Weaver Base Adapter Converter Barrel Scope Heavy Duty Scope by 360 tactical
- **How much does it cost?** 4261 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/270253835-360-tactical-universal-21mm-weaver-base-adapter-converter-barrel-scope)

## Best For

- 360 tactical enthusiasts

## Why This Product

- Trusted 360 tactical brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Accessory Ready:** Mount flashlights, lasers, and tactical gear seamlessly
- • **Rock-Solid Stability:** 3-screw clamp ensures zero movement under heavy recoil
- • **Universal Compatibility:** Fits rifles, shotguns, handguns & more with 21mm Weaver base
- • **Weather-Resistant Armor:** Matte black finish built to endure harsh outdoor conditions
- • **Effortless 2-Piece Design:** Smart modular build for quick, tool-free installation

## Overview

The 360 Tactical Universal 21mm Weaver Base Adapter is a rugged, lightweight aluminum rail mount designed for quick installation on rifles, shotguns, and handguns. Featuring a secure 3-screw clamp and durable matte black finish, it reliably supports tactical accessories like flashlights and lasers even under heavy recoil and harsh weather, making it a top choice for professionals and enthusiasts alike.

## Description

We provide durable items

Review: Good quality, fits my H&R 20ga shotgun barrel - I purchased this clamp-on rail to fit on the barrel of my H&R 20 ga Snake Tamer shot gun. I put a weapon light on it. The mount fit perfectly. Even though the barrel has a slight taper to it, the 3-screw clamp allowed full barrel contact and after testing it with heavy load 3" mag shells, the mount and light remained unmoved. I am very happy with it. The weapon light that I placed on the mount was a "Feyachi HL-20 Pistol Light 1500 Lumen LED", which I also purchased from desertcart. The light was a great purchase at $32. It is amazing bright and can be focused from wide throw to spot. I will buy a few more. I am a retired police officer after 50+ years and I own three (3) pistol Streamlights and this beats them by brightness and price. Appears to be very well constructed. The rail mount and the Feyachi are a great combo!
Review: Airgun Hobbiest - Perfect and secure fit to customize barrel or PCP tubes for accessories.

## Features

- Smart 2-piece design, easy installation, fit around the front view housing
- Designed to m-o-u-n-t flashlight, laser, hand-guns, rifles, and shotgun
- Ring designed to install flashlight / laser, thumb nut allows for quick installation.
- The lightweight single r-a-i-l bracket is easy to install without any armory.
- Durable matte black finish that can withstand harsh weather conditions

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08MCS9C9P |
| Best Sellers Rank | #28,092 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #19 in Airsoft Gun Scope Mounts |
| Brand | 360 Tactical |
| Brand Name | 360 Tactical |
| Color | Pack of 2 -2 |
| Compatible Devices | Rifle, Shotgun |
| Customer Reviews | 4.5 4.5 out of 5 stars (850) |
| Date First Available | March 29, 2021 |
| Item Dimensions LxWxH | 0.79 x 0.79 x 0.79 inches |
| Item Package Dimensions L x W x H | 2.52 x 2.05 x 1.97 inches |
| Item Weight | 100 Grams |
| Manufacturer | 360 Tactical |
| Material | Aluminum |
| Model Name | 360 Tactical Single Rail Three Slot Barrel Mount |
| Mounting Type | Weaver Mount |
| Night vision | No |
| Package Weight | 0.14 Kilograms |
| Sport | Hunting |
| Style | Single Rail Three Slot Barrel Mount Weave Picatinny |

## Product Details

- **Brand:** 360 Tactical
- **Color:** Pack of 2 -2
- **Compatible Devices:** Rifle, Shotgun
- **Item Weight:** 100 Grams
- **Material:** Aluminum
- **Model Name:** 360 Tactical Single Rail Three Slot Barrel Mount
- **Mounting Type:** Weaver Mount
- **Night vision:** No
- **Sport:** Hunting
- **Style:** Single Rail Three Slot Barrel Mount Weave Picatinny

## Images

![360 Tactical Universal 21mm Weaver Base Adapter Converter Barrel Scope Heavy Duty Scope - Image 1](https://m.media-amazon.com/images/I/51qeC3V3EjL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good quality, fits my H&R 20ga shotgun barrel
*by K***. on March 17, 2025*

I purchased this clamp-on rail to fit on the barrel of my H&R 20 ga Snake Tamer shot gun. I put a weapon light on it. The mount fit perfectly. Even though the barrel has a slight taper to it, the 3-screw clamp allowed full barrel contact and after testing it with heavy load 3" mag shells, the mount and light remained unmoved. I am very happy with it. The weapon light that I placed on the mount was a "Feyachi HL-20 Pistol Light 1500 Lumen LED", which I also purchased from Amazon. The light was a great purchase at $32. It is amazing bright and can be focused from wide throw to spot. I will buy a few more. I am a retired police officer after 50+ years and I own three (3) pistol Streamlights and this beats them by brightness and price. Appears to be very well constructed. The rail mount and the Feyachi are a great combo!

### ⭐⭐⭐⭐⭐ Airgun Hobbiest
*by T***R on January 19, 2026*

Perfect and secure fit to customize barrel or PCP tubes for accessories.

### ⭐⭐⭐⭐ If you're handy...can make work
*by A***R on June 27, 2025*

Had to modify but worked well on a Ruger super Wrangler 22....for the money, fantastic!

## Frequently Bought Together

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-02-03*