Well took the wife and went to the range today to shoot the MK III and all I can say is WOW! Put a MK II hammer in, removed the spring that keeps tension on the mag, installed a extended mag release and put a Majestic speed strip kit on as well. Got it for the wife (not really) and se was shooting 10 shots in a 1" to 1.5 groups at 21 feet! Not a single FTF or FTE and we ran about 450 rounds thru it.