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Posted: 2/8/2010 10:27:45 AM EDT
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I took my AR to the range for the second time yesterday and began having a frustrating problem. I inserted a full magazine (30rd PMAG) pulled the charging handle fully to the rear and released it, however the bolt carrier would not go into battery. If I did this without a magazine inserted, everything was fine, but with a full magazine, the forward travel of the bolt was noticeably slower, as if it were dragging on something. It also occurred using the bolt release following a magazine change. A few good thump on the forward assist and all 30 rounds fired without problem. It was only when loading a full mag. It happened with all 6 PMAGS. This did not happen on my previous (first with this rife) range trip.
Here's my build: Mega Lower RRA LPK ADDAX ATAC upper Magpul CTR Mil-spec Thanks in advance for any help! |
| I just tried that tonight, loading only 20 rounds. I thoroughly cleaned and oiled (I don't have a chamber brush yet, but inspection looked pretty good, being a piston and all). Minor brass shavings and one small area of finish wear inside the upper. Still functions fine on empty mag or with out mag. |
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