Doug M.

Mine runs great too. I put a Sun Devil adjustable key on top of it to throttle the gas and it seems to work well. Coupled with an advanced Armament M4-72, my 4lb4oz lightweight build feels smoother than my "competition" gun (miculek brake) that is 2 lb heavier.

(Changed buffer to bolt carrier for clarity)

I just ran mine for the first time yesterday and I'm very happy with it. I skeletonized my buffer so it is predictably over gassed. Even still, recoil was nonexistent. I'm looking forward to tuning the system further to see how soft I can get it to shoot. This buffer weighs 3.91oz and is very finely made. Before I ordered, I spoke with Will at length and he appears to be a class act. I ran it very wet and I did not see any signs of wear after 30 rounds. (I know. not much evidence) For those of us willing to sacrifice auto fire and really pare the weight down, there is more material than can be removed without a strength penalty and I'm looking forward to making it even lighter.