Got mine today, Took it down to clean off the grease and oil, only to find there was none. Dry as a bone. Very surprised. Sure made cleaning easy tho. Got it nice and oiled up and it feels great. I cycled a mag full thru it and I think a heavier recoil spring may be in order. Anyone know whats in it from the factory? Feels light. Can't wait to shoot it. Got a set of wood grips on the way too.