I've been back and forth with the guys over at GA precision I believe I have a defective gas block because I turned the gas all the way off and the rifle still cycles (Seekins gas block) I've been passed from Ken to Jeremy and then Jeremy was suppose to have Mark I believe contact me. Jeremy mentioned them having complaints about the seekins gas blocks and mentioned sending me an SLR what they use now. I cannot get into contact with those guys anymore left several messages. Anyone else have or have had similar issues with gap 10 semi auto in 6.5cm? Thanks