. I had purchased some Pmags earlier in the year and now I'm finding out that I will have to grind down the rivet. I also see that the mag that comes with the rifle has the "over insertion" tab, other than that there are identical. Any other owners/operator find the some problem with the mags?, & does the feed ramps look like they have been "dremeled" I read a post post on M4Carbine about it and mine seems to be the same as buddy?



























