1911 A1 GI Thumb Safety, Blk $59.97 F403650 Colt 1911 A1 Thumb Safety. Black, machined from billet steel, not cast. Some fitting may be required, recommended to be installed by a qualified gunsmith for safety. Only 1 left in stock 1911 A1 GI Thumb Safety, Blk quantity Add to cart Category: Colt 1911 Related products Fusion 1911 Milspec Hammer, Govt, Bl $65.00 Fusion 1911 2pc Full Length Guide Rod, Commander, Stainless $65.00