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Archived [ARCHIVED THREAD] - Bolt hold open no go
Posted: 10/8/2007 4:52:39 AM EDT
Doublestar AR.  No issues of any sort until yesterday. Not that this is a real issue, went bang everytime.   Shooting at bench rest.  With full mags bolt would not hold open on the last round.  This happened w/3 different mags.  When testing this later with 5-10 rounds, Bolt held open every time.   Loaded up another full mag, no bolt hold open.   Any ideas?  

Link Posted: 10/8/2007 7:39:08 AM EDT
[#1]
Lack of lube (CLP) on the upper bearing surfaces, causing a less than stellar stroke, and maybe even compounded by dirty/fouled mags that may have either worn springs or just new mags that the followers have not broken in (mated/polished to the inside of the mag body).
Archived [ARCHIVED THREAD] - Bolt hold open no go
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