Thread: Double Fire..
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Old December 31, 2018, 11:03 PM   #13
Bartholomew Roberts
Senior Member
 
Join Date: June 12, 2000
Location: Texas and Oklahoma area
Posts: 7,836
Every time I’ve seen an AR double, it has been one of two things.

1) Poor trigger control causing unintentional bump fire.
2) Through DIY gunsmithing, use, or poor parts quality, the thin case hardening on the nose of the trigger has been worn through and now it isn’t catching the hammer after the disconnector hook lets go, so it fires on the pull and the release. Basically a DIY binary trigger; but less predictable.
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