Help us out here gang ...major mike said:I just finished a tactical course with ten of our folks this past Mon./Tues. that went well. We did have a couple of things though that I hadn't had with AR's. Some primers blew out of the casing. I cleaned out the chambers thoroughly and told the guys to make sure that the rounds in the mags. were all the way to the rear of the mag. Seemed to stop that problem. Would appreciate any advice on the matter. I did about flip out when I shopped for some extra mags. Found some slightly used for $36.