This is a metal replica of the LeMat pistol made by Denix. It features a moving trigger and hammer and is fairly heavy (about 3.5 lbs). The hammer actually locks in both positions like the real pistol. Great for your Man in Black from Westworld build or as the basis for Jayne's Boo from Firefly...
These are the Sulley and Boo Monsters Inc. costumes I made for me and my wife. Sulley is almost 7.5' tall and can blink!
build info can be found here