Carlsons Hammer Expander Features The Carlsons Choke Tubes Hammer Expander is purpose built for the Henry Golden Boy rimfire rifle giving shooters an easier more controlled way to manually cock the hammer. Its knurled aluminum body provides a positive non-slip grasp even with gloved or wet hands which matters most when a fast follow up shot is needed in the field. Because it is ambidextrous the expander works equally well for left and right handed shooters without any modification. The black hard anodized finish resists wear and matches the factory finish of the rifle for a clean factory look. Balanced and lightweight at just .375 inch in diameter and 1.5 inch in length the expander adds negligible bulk while still giving the leverage needed for smooth cocking. It also helps prevent uneven wear on the trigger and sear surfaces that can result from repeated manual cocking over time extending the life of internal components. The design allows use with or without a telescopic sight mounted on the rifle so hunters running an optic lose none of the expander s functionality. Installation is straightforward making this a practical low cost upgrade for any Henry Golden Boy rimfire owner looking for smoother daily operation. Carlsons Hammer Expander Specifications Manufacturer: Carlsons Model: Hammer Expander Compatible Hosts: Henry Golden Boy Rimfire Color: Black Material: Aluminum Finish: Anodized Handedness: Ambidextrous Dimensions: .375 D x 1.50 L Available At: GrabAGun