Just before covid I purchased a WELL AK74 GBBR and every time something breaks I replace it with original WE parts with little to no work needed. This time however, I replaced the nozzle and the gun started short stroking and wasting the whole gas tank for about half a magazine. I believe I have narrowed it down to either the magazine seal being too low or the rear O-ring being too small. Has anyone had similar issues and what should I try first?
