---
product_id: 45286270
title: "Adapter Rail Mount - Converts 3/8\" Dovetail Grooves to Accept 7/8\" Weaver/Picatinny Style Scopes and Accessories Fits Mossberg 702 802 Henry Arms 22 Lever Action Rimfire Rifle"
brand: "m1surplus"
price: "€ 36.37"
currency: EUR
in_stock: true
reviews_count: 8
category: "M1 Surplus"
url: https://www.desertcart.it/products/45286270-adapter-rail-mount-converts-3-8-dovetail-grooves-to-accept
store_origin: IT
region: Italy
---

# 3/8" to 7/8" groove conversion 3.94" Picatinny rail length Bolt-on, no-mod install Adapter Rail Mount - Converts 3/8" Dovetail Grooves to Accept 7/8" Weaver/Picatinny Style Scopes and Accessories Fits Mossberg 702 802 Henry Arms 22 Lever Action Rimfire Rifle

**Brand:** m1surplus
**Price:** € 36.37
**Availability:** ✅ In Stock

## Summary

> 🔫 Upgrade your rimfire rig with precision and style—don’t get left behind!

## Quick Answers

- **What is this?** Adapter Rail Mount - Converts 3/8" Dovetail Grooves to Accept 7/8" Weaver/Picatinny Style Scopes and Accessories Fits Mossberg 702 802 Henry Arms 22 Lever Action Rimfire Rifle by m1surplus
- **How much does it cost?** € 36.37 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/45286270-adapter-rail-mount-converts-3-8-dovetail-grooves-to-accept)

## Best For

- m1surplus enthusiasts

## Why This Product

- Trusted m1surplus brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Lightweight:** Only 4" long and 0.1 kg—adds minimal bulk while maximizing versatility
- • **Precision Engineering:** Durable aluminum build with matte black finish for stealth and strength
- • **Effortless Installation:** Bolt-on design means no gunsmithing or permanent modifications required
- • **Universal Compatibility:** Seamlessly fits Mossberg 702/802, Henry Arms 22 Lever Action & more
- • **Expanded Accessory Options:** Transforms 3/8" dovetail grooves to accept all 7/8" Weaver/Picatinny scopes

## Overview

The M1Surplus Adapter Rail Mount converts standard 3/8" dovetail grooves on popular rimfire rifles into versatile 7/8" Weaver/Picatinny rails. Crafted from durable aluminum with a matte black finish, it offers a 3.94" rail length for mounting a wide range of scopes and accessories. Designed for easy bolt-on installation without modifications, it fits Mossberg 702/802, Henry Arms 22 Lever Action, and similar rifles, enhancing your shooting setup with professional-grade adaptability.

## Description

M1Surplus Dovetail Adapter Rail Mount - Made from durable Aluminum Material, Matte black color, This adapter allows you to convert your 3/8" dovetail equipped rifle or marker to accept industry standard 7/8" Weaver and Picatinny style scopes or accessories. Provides a 3.94 inch long Picatinny style rail with cross slots. Easy installation requires no modifications. Brand new item

Review: Rossi lever action - Easy install, seems very sturdy. Mounted a red dot sight on it. Have not had a chance to take it to the range yet.
Review: It works - Had an old scope with Picattiny mounting rings that I wanted to mount on a .22 rifle. This adapter worked perfectly.

## Features

- M1Surplus Adapter Rail Mount - This item Converts 3/8" Grooves To Accept 7/8" Weaver and Picatinny Style Accesssories
- Compatible With Industry Standard 7/8" Picatinny Style Scopes And Accessories
- This Item Fits Mossberg 702 802 Plinkster , Henry Arms 22 Lever Action Rimfire Rifles and Other Rifles That Have Factory 3/8" Dovetail Grooves
- Easy Bolt-on Installation

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B06Y1KK3G7 |
| Best Sellers Rank | #228,746 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #425 in Airsoft Gun Scope Mounts #27,700 in Hunting Equipment |
| Brand Name | M1SURPLUS |
| Customer Reviews | 4.1 4.1 out of 5 stars (70) |
| Date First Available | June 1, 2016 |
| Item Dimensions LxWxH | 4 x 0.8 x 0.7 inches |
| Item Package Dimensions L x W x H | 5.28 x 3.43 x 1.14 inches |
| Manufacturer | M1Surplus |
| Package Weight | 0.1 Kilograms |
| Part Number | M1-MNT-DT-SRT-(C) |

## Images

![Adapter Rail Mount - Converts 3/8" Dovetail Grooves to Accept 7/8" Weaver/Picatinny Style Scopes and Accessories Fits Mossberg 702 802 Henry Arms 22 Lever Action Rimfire Rifle - Image 1](https://m.media-amazon.com/images/I/51oNWySXCQL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Rossi lever action
*by M***K on May 26, 2024*

Easy install, seems very sturdy. Mounted a red dot sight on it. Have not had a chance to take it to the range yet.

### ⭐⭐⭐⭐⭐ It works
*by T***N on June 11, 2023*

Had an old scope with Picattiny mounting rings that I wanted to mount on a .22 rifle. This adapter worked perfectly.

### ⭐⭐ sloppy fit
*by H***N on July 8, 2025*

It is a really sloppy fit on a Henry .22. I doesn't look like it is centered correctly. I did make sure that it was put on correctly. I am going to return mine for something else. I would not recommend this for anything that has a 3/8 dovetail.

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-05-09*