--- product_id: 70929970 title: "360 Tactical Universal 21mm Weaver Base Adapter Converter Barrel Scope Heavy Duty Scope" brand: "360 tactical" price: "€ 22.25" currency: EUR in_stock: true reviews_count: 8 category: "360 Tactical" url: https://www.desertcart.gr/products/70929970-360-tactical-universal-21mm-weaver-base-adapter-converter-barrel-scope store_origin: GR region: Greece --- # Fits 21mm Weaver rail perfectly Heavy-duty metal build Adjustable clamp fits 0.66-1.18 inch barrels 360 Tactical Universal 21mm Weaver Base Adapter Converter Barrel Scope Heavy Duty Scope **Brand:** 360 tactical **Price:** € 22.25 **Availability:** ✅ In Stock ## Summary > 🔫 Elevate your aim with the ultimate tactical rail adapter! ## 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?** € 22.25 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/70929970-360-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 - • **Multi-Accessory Ready:** Top rail supports seamless installation of scopes, sights, torches, and lasers. - • **Rock-solid Durability:** Crafted from premium aluminum alloy for shock absorption and long-lasting performance. - • **Effortless Installation:** Tool-included clamp-on design ensures quick, secure mounting on any 21mm Weaver rail. - • **Universal Compatibility:** Adjustable two-piece design fits a wide range of rifle tubes from 0.66 to 1.18 inches. - • **Battle-Tested Reliability:** Trusted by pros and enthusiasts alike for hunting, airsoft, and tactical war games. ## Overview The 360 Tactical Universal 21mm Weaver Base Adapter is a heavy-duty, aluminum alloy scope mount designed for versatile use on rifles with 21mm rails. Featuring an adjustable clamp system that fits barrel diameters from 0.66 to 1.18 inches, it supports a variety of tactical accessories including scopes, sights, torches, and lasers. Lightweight yet shock-absorbent, this adapter is perfect for hunting, airsoft, and tactical applications, delivering professional-grade stability and quick installation. ## Description Brand new Color: Black Model: M0131 Material: Aluminium Alloy Net Weight: 73g Gross Weight: 86g Easy to install Fit on 21mm Rail Top Rail allow installation of scope, sight, torch, laser Constructed of metal material, extra strong shock Absorption ability Perfect for hunting, airsoft, war game Package Included: 1 X Rail Converter 1X Wrench 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: Aiming to Please - They did the job, still holding steady—when you’re in a hurry ! Fair pricing . ## Features - Top Rail allow installation of scope, sight, torch, laser - Constructed of metal material, extra strong shock - Perfect for hunting, airsoft, war game - Easy to install , Fit on 21mm Rail - Absorption ability. Adjustable two-pieces design for rifle tube could adjust the compatible diameter range: from 0.66 inch to 1.18 inch. - Adjustable two-pieces design for rifle tube could adjust the compatible diameter range: from 0.66 inch to 1.18 inch. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B079RFRDL8 | | Best Sellers Rank | #40,812 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #10 in Airsoft Gun Scope Mounts | | Brand | 360 Tactical | | Brand Name | 360 Tactical | | Color | Pack of 1 | | Compatible Devices | Rifle | | Customer Reviews | 4.5 out of 5 stars 965 Reviews | | Item Display Weight | 73 Grams | | Item Weight | 73 Grams | | Magnification Minimum | 1 x | | Manufacturer | 360 Tactical | | Material | Aluminum, Metal | | Material Type | Aluminum, Metal | | Model Name | M0131 | | Mounting Type | Picatinny Mount, Weaver Mount | | Night vision | No | | Objective Lens Diameter | 21 Millimeters | | Product Style | Tactical | | Reticle Type | Cross | | Sport | Airsoft, Hunting | | Sport Type | Airsoft, Hunting | | Style | Tactical | | Thread Type | 1/2"-28 UNC | | Unit Count | 1.0 Count | ## Product Details - **Brand:** 360 Tactical - **Color:** Pack of 1 - **Compatible Devices:** Rifle - **Item Weight:** 73 Grams - **Magnification Minimum:** 1 x - **Material:** Aluminum, Metal - **Mounting Type:** Picatinny Mount, Weaver Mount - **Objective Lens Diameter:** 21 Millimeters - **Sport:** Airsoft, Hunting - **Style:** Tactical ## Images ![360 Tactical Universal 21mm Weaver Base Adapter Converter Barrel Scope Heavy Duty Scope - Image 1](https://m.media-amazon.com/images/I/5160fqya+NL.jpg) ## Questions & Answers **Q: Will this fit on a Taurus model 692** A: what??? **Q: Will this fit a 410 shockwave?** A: Having the same problem I got both the 360 tactical 3 slot barrel clamp pictanny and this type. The 360 worked best for your type gun **Q: Could this damage the feeding tube if tighten too hard ?** A: No, the screws would strip before it could ever do damage **Q: Would this fit a savage model 340 30-30?** A: No ## 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! ### ⭐⭐⭐⭐⭐ Aiming to Please *by R***. on May 7, 2026* They did the job, still holding steady—when you’re in a hurry ! Fair pricing . ### ⭐⭐⭐⭐⭐ Solid mount and easy to install *by A***E on March 16, 2026* This adapter is surprisingly solid for the price. The machining looks clean and the metal feels sturdy, not cheap or flimsy. Installation was very simple and the included Allen key made it quick to secure everything. Once mounted it holds very tight and doesn’t shift or move, even after repeated use. The rail fits accessories properly and everything lines up the way it should. Overall it does exactly what it’s supposed to do. Good quality, simple installation, and very good value for the money. Would definitely recommend it. ## Frequently Bought Together - 360 Tactical Universal 21mm Weaver Picatinny Rail Base Adapter Converter Barrel Scope Mount Heavy Duty Scope Mount - Feyachi Reflex Sight - Adjustable Reticle (4 Styles) Both Red and Green in one Sight! - 11mm Dovetail to 21mm Upgraded Build-in Locking Screws Picatinny Rail Low Profile Scope Mount Converter Base 3/8" to 7/8" Converter --- ## 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.gr/products/70929970-360-tactical-universal-21mm-weaver-base-adapter-converter-barrel-scope](https://www.desertcart.gr/products/70929970-360-tactical-universal-21mm-weaver-base-adapter-converter-barrel-scope) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-07-12*