Grovtec Henry Big Boy Hammer Ext

The GrovTec Henry Big Boy Hammer Extension (GTHM283) is a precision-engineered hammer extension designed for Henry Big Boy centerfire rifles and Henry Single Shot models manufactured after 2010. This compact accessory extends reach and leverage on the hammer, improving manual operation and reducing hand fatigue during extended shooting sessions, particularly beneficial for shooters with reduced hand strength or those operating in heavy gloves or tactical gear.

Weighing just 0.06 pounds and measuring 3 × 1 × 5.55 inches, the hammer extension integrates seamlessly with Henry rifles without altering balance or adding measurable bulk. The compact profile maintains the rifle's natural handling characteristics while providing genuine mechanical advantage. GrovTec manufactures this extension to tight tolerances, ensuring consistent fit and reliable performance across production variations within the post-2010 Henry Big Boy and Single Shot lineup. The extension mounts directly to the hammer mechanism with no gunsmithing required.

This accessory serves shooters who demand improved ergonomics on lever-action platforms—hunters operating in cold weather, precision shooters working extended range sessions, and operators managing rifles during tactical training. Henry Big Boy and Single Shot owners who find the standard hammer difficult to manipulate under stress, in adverse conditions, or while wearing protective equipment will find this extension delivers meaningful functional improvement without compromising the rifle's classic profile or reliability.