--- product_id: 584182500 title: "Dovetail to Picatinny Rail Adapter 11mm Dovetail to 21mm Picatinny Rail Convert Mount - Low Profile Scope Riser Rail Adaptor - Base Mount 3/8\" to 7/8\" Converter" brand: "lonsel" price: "833466₫" currency: VND in_stock: true reviews_count: 8 category: "Lonsel" url: https://www.desertcart.vn/products/584182500-dovetail-to-picatinny-rail-adapter-11mm-dovetail-to-21mm-picatinny store_origin: VN region: Vietnam --- # Converts 11mm dovetail to 21mm Picatinny rail Low profile 0.59" riser for stable mounting Aircraft-grade aluminum alloy Dovetail to Picatinny Rail Adapter 11mm Dovetail to 21mm Picatinny Rail Convert Mount - Low Profile Scope Riser Rail Adaptor - Base Mount 3/8" to 7/8" Converter **Brand:** lonsel **Price:** 833466₫ **Availability:** ✅ In Stock ## Summary > 🔧 Elevate Your Aim with Precision and Style! ## Quick Answers - **What is this?** Dovetail to Picatinny Rail Adapter 11mm Dovetail to 21mm Picatinny Rail Convert Mount - Low Profile Scope Riser Rail Adaptor - Base Mount 3/8" to 7/8" Converter by lonsel - **How much does it cost?** 833466₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/584182500-dovetail-to-picatinny-rail-adapter-11mm-dovetail-to-21mm-picatinny) ## Best For - lonsel enthusiasts ## Why This Product - Trusted lonsel brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Seamless Rail Conversion:** Effortlessly transform your 11mm dovetail mounts to versatile 21mm Picatinny rails, expanding your optics and accessory options. - • **Optimized Low-Profile Design:** 0.59" riser height ensures a sleek, stable platform that maintains your firearm’s balance and sight alignment. - • **Extended Mounting Flexibility:** With 11 slots over 4.72 inches, customize your setup with scopes, red dots, or tactical accessories exactly where you need them. - • **Precision Engineered Durability:** Crafted from premium aircraft-grade aluminum with a sleek black hard coat anodize finish for unmatched strength and longevity. - • **Tool-Assisted Secure Installation:** Includes an allen wrench and locking screws for a rock-solid, shake-free fit—because every shot counts. ## Overview The LONSEL 11mm Dovetail to 21mm Picatinny Rail Adapter is a precision-machined, aircraft-grade aluminum mount that converts standard 11mm dovetail bases to versatile 21mm Picatinny rails. Featuring a low-profile 0.59" riser and 11-slot rail over 4.72 inches, it offers enhanced flexibility for mounting scopes and accessories. Easy to install with included tools, this adapter ensures a secure, stable fit for professional-grade performance. ## Description Lightweight & Durable ｡◕‿◕｡Precision Machined from aircraft grade aluminum and finished in a matte black hard coat anodize, durable solid structure. 11mm To 21mm Rail Convert Adapter ｡◕‿◕｡Compatible with 11mm or 3/8" dovetail mounts, can be used to convert to 21mm picatinny rail mount. Low Profile Riser Rail Design ｡◕‿◕｡ 3.94"/100mm length single picatinny rail with 9 Slots with a 0.59" saddle height riser rail. ｡◕‿◕｡ 4.72"/120mm length single picatinny rail with 11 Slots with a 0.59" saddle height riser rail. Easy to Install ｡◕‿◕｡Three high strength locking screws ensure a solid mount-to-receiver lock up, attached allen wrench can help you to ensure tight enough, keep stable and no shaking. Review: Details need to better worded but over all, GREAT! - This came in quick, it worked well for the fun, the only thing is, that the listing of said item was confusing as to which sizes there were. So because of how the product was listed, we got the wrong rail adapter, but it was still able to work for the gun. It really is a great product, sturdy and durable just make sure to really check the wording and the sizing for the best fit. Review: Great BANG for the BUCK$! - I used this rail adapter to install a Nikon 3x9x50 scope with Weaver rings onto my Marlin, Model 60, 22LR. The fit was perfect for this unit due to the length and height. It allowed just enough space or height for the large diameter of the 50mm lens while keeping the height above barrel bore at 2” inches. It holds securely onto the small dovetail of the rifle allowing me to maintain MOA as close as I can achieve with 22LR caliber. A great option for the responsible person who wants a setup that doesn’t require gunsmith’s. ## Features - Precision Material: Premium out of aircraft grade aluminum alloy and black hard coat anodize finish, sturdy & durable. - Convert 11mm Dovetail to 21mm Picatinny Rail: 2.94 inches length at the base, the picatinny rail extends 4.72 inches /120 mm allowing for more flexible optics placement. - Mount Base: Fit 11 mm dovetail mounts, Base mount 3/8" to 7/8" converter adapter. Low profile 0.59" riser rail for scope. - Top With 11 Slots Style Rail: Top 21mm picatinny rail allows for the mounting of picatinny standard scopes, red dots or other accessories. - Easy To Install: Rail adaptor installs easily via dovetail mount and one vertical stop pin, attached allen wrench can help you to tight stable and no shaking. ## Technical Specifications | Specification | Value | |---------------|-------| | Item Package Dimensions L x W x H | 5.98 x 3.23 x 0.75 inches | | Package Weight | 0.07 Kilograms | | Item Dimensions LxWxH | 4.72 x 0.98 x 0.43 inches | | Brand Name | LONSEL | | Model Name | 11MM-DRM | | Color | Black | | Material | Aluminum | | Manufacturer | LONSEL | | Part Number | 11MM-DRM | | Style | 1 PACK - 11 Slots | ## Images ![Dovetail to Picatinny Rail Adapter 11mm Dovetail to 21mm Picatinny Rail Convert Mount - Low Profile Scope Riser Rail Adaptor - Base Mount 3/8" to 7/8" Converter - Image 1](https://m.media-amazon.com/images/I/61V7zAlZrnL.jpg) ![Dovetail to Picatinny Rail Adapter 11mm Dovetail to 21mm Picatinny Rail Convert Mount - Low Profile Scope Riser Rail Adaptor - Base Mount 3/8" to 7/8" Converter - Image 2](https://m.media-amazon.com/images/I/61G8ujDzQEL.jpg) ![Dovetail to Picatinny Rail Adapter 11mm Dovetail to 21mm Picatinny Rail Convert Mount - Low Profile Scope Riser Rail Adaptor - Base Mount 3/8" to 7/8" Converter - Image 3](https://m.media-amazon.com/images/I/81urNvavKLL.jpg) ![Dovetail to Picatinny Rail Adapter 11mm Dovetail to 21mm Picatinny Rail Convert Mount - Low Profile Scope Riser Rail Adaptor - Base Mount 3/8" to 7/8" Converter - Image 4](https://m.media-amazon.com/images/I/51-OsOSB2aL.jpg) ![Dovetail to Picatinny Rail Adapter 11mm Dovetail to 21mm Picatinny Rail Convert Mount - Low Profile Scope Riser Rail Adaptor - Base Mount 3/8" to 7/8" Converter - Image 5](https://m.media-amazon.com/images/I/61oDWX+148L.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Details need to better worded but over all, GREAT! *by S***Y on May 7, 2026* This came in quick, it worked well for the fun, the only thing is, that the listing of said item was confusing as to which sizes there were. So because of how the product was listed, we got the wrong rail adapter, but it was still able to work for the gun. It really is a great product, sturdy and durable just make sure to really check the wording and the sizing for the best fit. ### ⭐⭐⭐⭐⭐ Great BANG for the BUCK$! *by A***R on May 20, 2026* I used this rail adapter to install a Nikon 3x9x50 scope with Weaver rings onto my Marlin, Model 60, 22LR. The fit was perfect for this unit due to the length and height. It allowed just enough space or height for the large diameter of the 50mm lens while keeping the height above barrel bore at 2” inches. It holds securely onto the small dovetail of the rifle allowing me to maintain MOA as close as I can achieve with 22LR caliber. A great option for the responsible person who wants a setup that doesn’t require gunsmith’s. ### ⭐⭐⭐⭐⭐ Works perfectly with Citadel 12 Gauge Warthog *by D***K on May 6, 2026* I have a Citadel 12 Gauge Turkish Warthog Semi-Auto Shotgun with dovetail rails on the top of the receiver. This fit it perfectly. Once tightened, the tap doesn’t move and looks it was made to fit. It is well made, has a great anodized finish without any blemishes. I highly recommend this if you the same shotgun as I do. I am sure it will serve me very well. I plan to mount a red dot on this rail very soon. ## Frequently Bought Together - LONSEL Dovetail to Picatinny Rail Adapter 11mm Dovetail to 21mm Picatinny/Weaver Rail Convert Mount - Low Profile Scope Riser Rail Adaptor - Base Mount 3/8" to 7/8" Converter - Feyachi Reflex Sight - Adjustable Reticle (4 Styles) Both Red and Green in one Sight! - Dovetail to Picatinny Rail Adapter, 11mm Dovetail to 21mm Picatinny/Weaver Rail Upgraded Build-in Locking Screws Low Profile Scope Mount Converter Mount Base Mount 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.vn/products/584182500-dovetail-to-picatinny-rail-adapter-11mm-dovetail-to-21mm-picatinny](https://www.desertcart.vn/products/584182500-dovetail-to-picatinny-rail-adapter-11mm-dovetail-to-21mm-picatinny) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-06-05*