Searching around for ideas on the possible cause of early lock open with my SCS 3/2 combo on a short stroke GMR 15.
This thread seems like a good place to ask why a bolt might lock open after only firing a few rounds at speed. When examining the stoppage, the chamber is free and clear of the last round spent and the top round in the magazine is sitting like its the first round in a fresh magazine. No visible reason for the lock back. All that is necessary to bring the gun back into action is to close the bolt again and chamber that round. This has occurred 5 or 6 times but can not be recreated by doing anything in particular when troubleshooting.
Thoughts? Anyone seen this on their JP?