hey guys, did it about 12 hours ago and now tested it, it works great. but i have a problem with a leak, i don't think it's a major one, but anyway it's irritating me. when my ram is in the forward position (bolt closed) i can hear gas leaking. but when i fire and keep the backblock retracted, the hissing stops. and then i let the backblock back again and there is no leaking sound for about 3-4 seconds, then i can hear the leaking again. it sounds like it's coming somewhere from my ram, possibly the back section. i have an eclipse nexus ram if that helps. cheers, Chris