Unplugged the solenoid hole, removed everything inside the lower tubes, checked all o-rings, everything looked good. Reassembled still doesn't shoot. Even adjusted the LPR, nothing happens. Tried pushing the bolt forward, hard at first, once all the way forward the gun pops, and the bolt slides easily. Figured remove the SCM-III and replace it with original, chewed a few o-rings in the process of swapping them but the gun shoots now. So there is something wrong with my SCM-III.
Any ideas? When I bought it the previous owner told me he basically never used it so it sat in the box waiting to be installed. (Said he installed it and didn't like the offset look without a Mighty Max so he removed it.)