GrovTec GTHM283 Hammer Extension Henry Big Boy Single Shot Black

The GrovTec GTHM283 Hammer Extension transforms the shooting experience on Henry Big Boy and single shot rifles by providing enhanced leverage and improved hammer manipulation. This precision-machined steel component addresses the common challenge of operating hammer-fired rifles with gloved hands or in adverse conditions.

What Makes This Different

Unlike generic hammer spurs that simply add length, the GTHM283 features an ergonomically contoured design that distributes thumb pressure evenly across a wider surface area. The extension increases effective hammer reach by 0.75 inches while maintaining the rifle's original balance point. The textured gripping surface provides positive contact even with wet or gloved hands, eliminating the slippage common with smooth factory hammers.

Key Features

• Precision-machined from hardened steel for long-term durability
• Matte black finish resists corrosion and reduces glare
• Direct bolt-on installation requires no gunsmithing or modifications
• Textured thumb contact surface prevents slipping in wet conditions
• Extends hammer reach by 0.75 inches for improved leverage
• Compatible with Henry Big Boy and most single shot rifle actions
• Maintains original safety mechanisms and trigger function

Field testing demonstrates significant improvement in hammer cocking speed and reliability across temperature ranges from -20°F to 120°F. The extension proves particularly valuable for hunters wearing heavy gloves, competitive shooters requiring rapid follow-up shots, and tactical applications where reliable hammer operation is critical. The steel construction withstands repeated cycling without wear or deformation.

Technical Specs

• Material: Hardened carbon steel construction
• Finish: Matte black oxide coating
• Extension length: 0.75 inches beyond factory hammer
• Weight: 1.2 ounces
• Compatibility: Henry Big Boy series, most single shot actions
• Installation: Direct bolt-on, no gunsmithing required
• Country of origin: Made in USA

This hammer extension delivers measurable performance improvements through engineered design rather than marketing claims. Professional gunsmiths and serious shooters recognize GrovTec's reputation for functional accessories that enhance weapon operation without compromising reliability.