1911 Thumb Safety, Blk $59.97 F500067 Colt 1911 Thumb Safety. Black, machined from billet steel, not cast. Some fitting may be required, recommended to be installed by a qualified gunsmith for safety. Out of stock Category: Colt 1911 Related products Colt 1911 Front White Dot Sight, Series 70 $40.00 Firing Pin Stop $25.00