I put the Primary Arms 4X Scope with the 7.62X39 reticle on this upper and it can drive nails at 100 yards. I love the simplicity of the piston, after shooting over 100 round the first day it almost as CLEAN as if it was new. I can see this becoming my favorite rifle to shoot. Oh, did I say it look awesome!
Reviewed by: Michael Hughes from Cibolo, Texas on 5/1/2016