{"product_id":"grovtec-gthm283-hammer-extension-henry-big-boy-single-shot-black-steel","title":"GrovTec GTHM283 Hammer Extension Henry Big Boy, Single Shot Black Steel","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eGrovTec GTHM283 Hammer Extension\u003c\/span\u003e\u003c\/strong\u003e is a purpose-built accessory designed to give \u003cstrong\u003eHenry Big Boy centerfire rifles (post-2010)\u003c\/strong\u003e and \u003cstrong\u003eHenry Single Shot rifles\u003c\/strong\u003e a much larger hammer contact surface. Machined from \u003cstrong\u003esteel\u003c\/strong\u003e and finished in a low-glare \u003cstrong\u003eblack\u003c\/strong\u003e coating, this horizontal-mount extension replaces the factory hammer spur to deliver \u003cspan style=\"background-color: #ffff00;\"\u003eeasy cocking\u003c\/span\u003e and improved thumb purchase whether you shoot with gloves on or off.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eDrop-in installation requires no permanent modification to the host rifle. The extension can be mounted on \u003cstrong\u003eeither the right or left side\u003c\/strong\u003e of the hammer, allowing the shooter to choose the orientation that best matches their grip and shooting style. Like all GrovTec hammer extensions, the GTHM283 is \u003cstrong\u003especific to the firearm it fits\u003c\/strong\u003e - confirm your Henry Big Boy is a post-2010 centerfire model, or that you are installing it on a Henry Single Shot, before use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eWhether you run a Henry Big Boy in the field, on the range, or as a working cowboy-action lever rifle, the GTHM283 gives the factory hammer a noticeably larger, more positive surface to thumb - reducing slips and speeding up follow-up cocking cycles.\u003c\/span\u003e\u003c\/p\u003e","brand":"GrovTec","offers":[{"title":"Default Title","offer_id":54993423466818,"sku":"75639","price":10.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_370ae305-0d68-4ea6-9141-c2f03595c018.png?v=1784271076","url":"https:\/\/centerfiresystems.com\/products\/grovtec-gthm283-hammer-extension-henry-big-boy-single-shot-black-steel","provider":"Centerfire Systems","version":"1.0","type":"link"}