Product DescriptionCarlson&';s Universal Hammer Spur Extension (Hammer Expander) is a balanced, lightweight accessory designed to make cocking exposed-hammer firearms easier for both left- and right-handed shooters. The knurled body provides a positive, non-slip grip, and the extension can be used with or without telescopic sights. It installs easily and helps prevent uneven wear of trigger and sear surfaces. This black, hard-anodized aluminum hammer extension is compatible with all T/C Contenders and most exposed-hammer rifles, shotguns, and handguns, and is made in the USA.Product Highlights Ambidextrous hammer spur extension for faster, more confident cocking with gloved or wet hands Knurled, non-slip grip surfaces for positive thumb purchase Balanced and lightweight design helps reduce uneven wear on trigger and sear surfaces Easy slip-on installation with set-screw retention (hex wrench typically included by manufacturer/retail pack) Hard-anodized black aluminum construction; usable with or without telescopic sights Specs Brand: Carlsons Manufacturer Part Number: 00110 UPC: 723189001100 Product Type: Hammer spur extension / hammer expander Color/Finish: Black, hard anodized Material: Aluminum Overall Dimensions: 0.375 in diameter x 1.5 in length Hammer Slot Dimensions: 0.508 in wide x 0.190 in high Compatibility: All Thompson/Center (T/C) Contenders; most exposed-hammer rifles, shotguns, and handguns Country of Manufacture: USA Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.