GrovTec Hammer Extension for Henry .22 Pump and Lever Action Rimfire Rifles
$8.48
Add a GrovTec horizontal hammer extension to your Henry .22 rifle for improved grip and control, especially useful on scoped firearms.
209 in stock
Grovtec US Inc GTHM283 Hammer Extensions Horizontal Henry Big Boy – 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.
Specifications
- Finish: Black
- Size: Henry Big Boy Hammer Extension
- Material: Steel
| Weight | 0.055 lbs |
|---|---|
| Dimensions | 4.900 × 2.800 × 1.150 in |
| Manufacturer | Grovtec Us Inc. |
| Finish | Black |
| Material | Steel |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.

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