mlind56 Posted March 18, 2013 Share Posted March 18, 2013 I disassembled my M1S90 for the first time for cleaning/inspection. After cleaning / lubrication I re-assembled the gun but found the bolt did not close fully. [ATTACH=CONFIG]2017[/ATTACH] I read a (much) earlier post where the OP had the same question; however the attached photos were no longer available so I'm not sure if we really had the same issue or not.I did discover the Firing Pin Retention Pin O-Ring was damaged and re-assembled the gun without it. So, is this normal? If not, would the o-ring not being installed cause this? It just does not look normal to me and I'm no gunsmith (not even close) but I really don't think the missing o-ring could cause this either. The locking head DOES swivel and move down into it's slot, but it does not move down the slot all the way. If the inertia spring is supposed to be compressed at all at this point (closing the bolt) I don't think it is. I appreciate any input on this ... thanks Quote Link to comment Share on other sites More sharing options...
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