Colt Commander: Thumb Safety

I completed the installation of an Ed Brown single sided extended thumb safety on my Combat Commander this evening, along with a flat, checkered aluminum mainspring housing. The grips were made from buffalo horn by a Vietnamese artisan.

I radiused the underside of the safety lever, and carefully removed metal from the lug, refitting it every three or four file passes, until I obtained the perfect snick of the safety engaging. A properly fitted safety should engage and disengage easily without moving the hammer, but also without any slop between the safety lug and sear foot.