(Wichita Falls TX.)
6/14/2012 5:40 PM
I installed this spring in my KM4 carbine with a SR trigger switch along with the teflon 6.02 barrel , my expectations were along the lines of 440fps , 450fps max, but surprisingly it put out a consistent 485fps , it even pumped a couple of 491"s with 20g ofcourse.... I like using 25g bbs so its shoots 450 which is exactly what i was looking for... VERY HAPPY WITH RESULTS !!!!!!!!