Don't be an idgit like me. Took my R92 to the range on Friday night after not shooting it for about seven months. While I was loading it I noticed what I thought was a missing screw on the right side of the receiver above and to the right of the loading gate. Dang it, it must have loosened and fallen out the last time I shot it. Or so I thought. So what did I do? Tightened all the other screws on the receiver, duh, what else? So there I am like a fool with my MUT cinching every fastener down. Well, after I top off the mag, I go to load a round and the lever is seized up. WTF? I really didn't want to waste anymore time tinkering with it at the range, so I pulled the plug and spring out of the magazine tube and emptied the rounds before putting the rifle back in its case. A quick google search at home revealed that I wasn't missing a screw after all, the open hole in the receiver is for a bolt pin. By tightening all the screws I inadvertantly tightened the bolt pin stop screw, effectively locking my bolt and seizing up the action. Moral to this story? If you haven't shot something for a while, refamiliarize yourself with it and don't go tightening screws/bolts like a chimp who just found a screwdriver!