I am new to this forum, hello everyone. I have a Saiga 12 question. I was wondering if someone might be able to help me. My saiga 12 bolt wont close all the way atleast half of the time. I can reach under and spin the bolt by hand and it then closes all the way. Like an idiot i tried modifying the bolt myself. I rounded the corners on the part of the bolt that has a pin in it, that part slides in the grooved part of the bolt carrier. After shaping, polishing and reinstalling I have been having this problem. I can see where that section of the bolt is slamming into a spot in the grooved section of the bolt carrier making it sorta flat. Looks to me like its catching there but when I push/pull by hand out of the gun the bolt feels like it slides smoothly. My question is have you encountered bolts that wont slam shut, sticks about 1/2 inch out. I can't figure out what might be causing this. Any help would be much appreciated.