GrovTec US Inc GTHM284 Hammer Extension for Henry .22 & Rossi 92 - Black Steel
- Type:
- Hammer Extension
- Finish-Color:
- Black
- Model:
- Rifle
- Size:
- Henry 22 Magnum Hammer Extension
- Material:
- Steel
- Hammer Type:
- Extension
A GrovTec hammer extension for Henry .22 and Rossi 92 rifles transforms your leverage and control when cocking, especially where scope mounting or tight geometry limits your thumb's natural range. This horizontal black steel extension bolts directly to the hammer, giving you a wider, more ergonomic contact surface—no fumbling or contorted grip needed. Whether you're running a scoped .22 or a compact lever gun, a properly fitted hammer extension turns a daily annoyance into a non-issue.
GrovTec builds these from steel with a black finish that resists corrosion and blends with most modern rifle setups. The horizontal design keeps your hand position lower and more natural than hunting for clearance around scope turrets or rings. Installation is straightforward: this extension mounts on either the right or left side of the hammer, depending on your preference and hand orientation.
One critical point: hammer extensions are rifle-specific. This model is engineered for Henry .22 and Rossi 92 firearms only. Do not install it on any other platform; doing so creates unsafe hammer function and is unsafe. If your rifle isn't on that compatibility list, GrovTec makes other extensions for other platforms—verify the model number before you buy.
If you shoot a scoped Henry .22 or Rossi 92 and find yourself fighting the hammer, this is a low-cost, legal upgrade that restores comfort and reliability to your shooting routine.
Key Features
- Horizontal extension design widens hammer strike surface for better leverage and control
- Solves scope clearance issues on scoped .22s and lever guns without removing optics
- Black steel construction resists corrosion and matches modern rifle finishes
- Mounts right or left side; fits Henry .22 and Rossi 92 only
- Simple installation with no gunsmithing required
Specifications
| Brand | GrovTec US Inc |
| Model | GTHM284 |
| Firearm Compatibility | Henry .22, Rossi 92 |
| Material | Steel |
| Finish | Black |
| Design | Horizontal Extension |
| Mount Position | Right or Left Side |
Frequently Asked Questions
Will this hammer extension fit my scoped Henry .22?
Yes, this GrovTec extension is designed for Henry .22 rifles and mounts horizontally to solve the clearance problem many shooters face when a scope sits above the hammer. It works on either side depending on your hand orientation.
Can I use this on a Rossi 92 lever gun?
Yes. This extension is engineered for both Henry .22 and Rossi 92 platforms. Do not use it on any other firearm.
Does the extension come with installation hardware?
The product record does not specify what fasteners or hardware are included. Contact Bosque Outdoors directly to confirm what ships with the extension.
Can I mount this on either side of the hammer?
Yes. This extension can be mounted on the right or left side of the hammer, allowing you to position it for your dominant hand and preferred shooting posture.

