---
product_id: 584182500
title: "LONSEL 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: "20606CFA"
currency: XOF
in_stock: true
reviews_count: 8
category: "Lonsel"
url: https://www.desertcart.sn/products/584182500-lonsel-dovetail-to-picatinny-rail-adapter-11mm-dovetail-to-21mm
store_origin: SN
region: Senegal
---

# 4.72-inch extended Picatinny rail Low profile 0.59-inch riser height Precision aircraft-grade aluminum LONSEL 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:** 20606CFA
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate Your Aim — Upgrade Your Rail, Upgrade Your Game!

## Quick Answers

- **What is this?** LONSEL 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?** 20606CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/584182500-lonsel-dovetail-to-picatinny-rail-adapter-11mm-dovetail-to-21mm)

## 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

- • **Universal Compatibility:** Fits 11mm dovetail mounts and converts 3/8" to 7/8" bases, making it the versatile choice for diverse firearms and airguns.
- • **Low Profile Riser Design:** Maintain a streamlined, tactical look with a subtle 0.59-inch riser that optimizes sight alignment without bulk.
- • **Aircraft-Grade Durability:** Crafted from premium aluminum alloy with a sleek black hard coat anodize finish for unmatched strength and longevity.
- • **Seamless 11mm to 21mm Conversion:** Effortlessly upgrade your optics setup with a 4.72-inch Picatinny rail extension, expanding your mounting possibilities.
- • **Tool-Assisted Secure Installation:** Includes an allen wrench and locking screws to ensure a rock-solid, wobble-free mount that keeps your optics zeroed.

## Overview

The LONSEL Dovetail to Picatinny Rail Adapter is a precision-machined, aircraft-grade aluminum mount that converts 11mm dovetail rails to a 21mm Picatinny platform. Featuring a low-profile 0.59-inch riser and an extended 4.72-inch rail with 11 slots, it offers versatile, secure mounting for scopes, red dots, and accessories. Easy to install with included tools, it delivers a stable, wobble-free upgrade trusted by thousands of shooters.

## 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: Excellent Little Adapter That Solved My Mounting Problem - I bought this adapter so I could mount a Picatinny red dot sight on my pellet pistol, which only came with an 11mm dovetail rail. I wasn't sure what to expect at this price point, but this little adapter exceeded my expectations. Installation was quick and straightforward. It fit the dovetail rail perfectly, tightened down securely, and provided a solid Picatinny platform for my optic. Once everything was mounted, there was no noticeable movement or wobble, and my red dot held zero without any issues. The machining is surprisingly nice for such an inexpensive part. It feels sturdy, the finish looks great, and it doesn't look or feel like a bargain-bin accessory. What impressed me most was the value. For just a few dollars, it completely expanded my mounting options and allowed me to use the optic I already owned instead of buying a different sight. That's a huge upgrade for very little money. If you have a pellet gun, air rifle, or firearm with an 11mm dovetail rail and want to mount Picatinny accessories, this adapter is an easy recommendation. It fit perfectly, worked exactly as advertised, and turned out to be one of the best values I've purchased. Highly recommended!
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 |
|---------------|-------|
| ASIN | B0CHYZDCC5 |
| Best Sellers Rank | #5,983 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #3 in Sporting Optics Mounts |
| Brand Name | LONSEL |
| Color | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (3,345) |
| Date First Available | June 28, 2021 |
| Item Dimensions LxWxH | 4.72 x 0.98 x 0.43 inches |
| Item Package Dimensions L x W x H | 5.98 x 3.23 x 0.75 inches |
| Manufacturer | LONSEL |
| Material | Aluminum |
| Model Name | 11MM-DRM |
| Package Weight | 0.07 Kilograms |
| Part Number | 11MM-DRM |
| Style | 1 PACK - 11 Slots |

## Images

![LONSEL 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)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent Little Adapter That Solved My Mounting Problem
*by R***W on August 3, 2026*

I bought this adapter so I could mount a Picatinny red dot sight on my pellet pistol, which only came with an 11mm dovetail rail. I wasn't sure what to expect at this price point, but this little adapter exceeded my expectations. Installation was quick and straightforward. It fit the dovetail rail perfectly, tightened down securely, and provided a solid Picatinny platform for my optic. Once everything was mounted, there was no noticeable movement or wobble, and my red dot held zero without any issues. The machining is surprisingly nice for such an inexpensive part. It feels sturdy, the finish looks great, and it doesn't look or feel like a bargain-bin accessory. What impressed me most was the value. For just a few dollars, it completely expanded my mounting options and allowed me to use the optic I already owned instead of buying a different sight. That's a huge upgrade for very little money. If you have a pellet gun, air rifle, or firearm with an 11mm dovetail rail and want to mount Picatinny accessories, this adapter is an easy recommendation. It fit perfectly, worked exactly as advertised, and turned out to be one of the best values I've purchased. Highly recommended!

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ Nice conversion for Weaver to Picatinny. Easy to install.
*by H***W on August 1, 2026*

Works well on a Winchester 190 to put a small red dot on it. Seems well made and had no problems holding zero.

## 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

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-08-14*