---
product_id: 19424965
title: "GrovTec US GTHM284 Hammer Extension for Henry 22, Black"
brand: "cannon"
price: "$30.48"
currency: USD
in_stock: true
reviews_count: 13
category: "Cannon"
url: https://www.desertcart.us/products/19424965-grovtec-us-gthm284-hammer-extension-for-henry-22-black
store_origin: US
region: United States of America
---

# Enhanced grip control Left/right side versatile mount Stainless steel durability GrovTec US GTHM284 Hammer Extension for Henry 22, Black

**Brand:** cannon
**Price:** $30.48
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate your firearm control with precision and style!

## Quick Answers

- **What is this?** GrovTec US GTHM284 Hammer Extension for Henry 22, Black by cannon
- **How much does it cost?** $30.48 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/19424965-grovtec-us-gthm284-hammer-extension-for-henry-22-black)

## Best For

- cannon enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Operation:** Expands hammer contact surface for smoother, more confident cocking under any conditions.
- • **Unmatched Durability:** Crafted from premium stainless steel for long-lasting performance and corrosion resistance.
- • **Precision Grip Control:** Textured surface ensures superior handling, especially when operating scoped firearms.
- • **Seamless Compatibility:** Specifically designed for Henry .22 rifles, guaranteeing a perfect, snug fit every time.
- • **Universal Mounting Flexibility:** Easily install on either left or right side to suit your shooting style and firearm setup.

## Overview

The GrovTec US GTHM284 Hammer Extension is a high-quality stainless steel accessory designed exclusively for Henry .22 rifles. It enhances grip and control by expanding the hammer's contact surface, offering left or right side mounting options for versatile use. Engineered for durability and precision, this extension ensures easier hammer operation, especially when using scopes, making it a must-have upgrade for serious firearm enthusiasts.

## Description

Adding a horizontal extension to hammers provides a larger contact surface and outstanding grip and control. Especially useful on scoped firearms where clearance can become an issue, GrovTec hammer extensions are made with the finest materials and finish in the industry. Can be mounted on the right or left side. Each hammer extension is specific to the firearms it fits. Do not use any hammer extension on a firearm not directly specified in the hammer extension's fit list.

Review: Perfect fit. - Easy install on my Henry .22 mag. Fits nice and snug. Makes it alot easier to operate the hammer with a scope.
Review: Perfect fit on my Henry Rifle - Not only did this product fit perfectly, but it was top quality and functioned exactly as advertised.

## Features

- Durable stainless steel construction
- Adds grip control to firearm
- Left or right side mounting

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B006QP75O2 |
| Best Sellers Rank | #42,461 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #191 in Gunsmithing Tools |
| Brand | Cannon |
| Brand Name | Cannon |
| Color | Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (671) |
| Date First Available | December 27, 2011 |
| Global Trade Identification Number | 00811071012843 |
| Grip Type | Textured |
| Handle Material | Stainless Steel |
| Head Material | Stainless Steel |
| Head Style | Flat |
| Item Dimensions LxWxH | 3 x 1 x 5.5 inches |
| Item Package Dimensions L x W x H | 5.08 x 2.91 x 1.38 inches |
| Manufacturer | Grove Square |
| Number of Items | 1 |
| Package Weight | 0.02 Kilograms |
| Part Number | GTHM284 |
| Style | German |
| UPC | 811071012843 811071000000 |

## Product Details

- **Brand:** Cannon
- **Color:** Black
- **Grip Type:** Textured
- **Handle Material:** Stainless Steel
- **Head Material:** Stainless Steel

## Images

![GrovTec US GTHM284 Hammer Extension for Henry 22, Black - Image 1](https://m.media-amazon.com/images/I/71BOHmrPeJL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect fit.
*by J***Y on November 10, 2025*

Easy install on my Henry .22 mag. Fits nice and snug. Makes it alot easier to operate the hammer with a scope.

### ⭐⭐⭐⭐⭐ Perfect fit on my Henry Rifle
*by B***8 on May 22, 2024*

Not only did this product fit perfectly, but it was top quality and functioned exactly as advertised.

### ⭐⭐⭐⭐⭐ Helps when using scope on rifle.
*by T***Y on February 5, 2026*

Helped my coworker cock his Henry rifle after scope was mounted on his rifle. Much safer than using just the hammer spur on lever action rifles.

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**Shop now:** [https://www.desertcart.us/products/19424965-grovtec-us-gthm284-hammer-extension-for-henry-22-black](https://www.desertcart.us/products/19424965-grovtec-us-gthm284-hammer-extension-for-henry-22-black)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-04-26*