Posted: 6/18/2006 2:21:34 PM EDT
I was sighting in my new aimpoint m2 this weekend, and had no problems till I left to go pick up some new ammo, which was monarch .223 in the green box . After a few rounds, it started Are there known problems with this ammo causing FTE in Colt ARs. I looked at the bolt, and saw nothing unusual, but that me.
clean, CLP your AR; check for any excessive wear on the extractor/bolt
try different ammo and mags and narrow it down
no personal expierence w/ your ammo....it might just not like the monarch
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