|
I had it happen once, it could be the lugs or side of the rail is slightly deformed causing the bolt to get stuck at the back. If the sides of the receiver are slightly off spec, it can cause the bolt to jam at the back. I doubt it's the nozzle, but to be sure, remove the nozzle and manually cycle the bolt and see where the friction is. If it is the receiver sides, try to lightly hammer the sides/lugs out and retest
|