Disappointing, did not fit magwell, retu
I wanted to like this promag drum because it is about 2/3 the price of the magpul but I found it did not fit my mil-spec lowers because the upper "tower" is slightly oversize. Both loaded and unloaded the tower would not fit in the magwell. Also, the drum is considerably larger than the magpul drum (I know 65 rounds vs 60 but that's not so much to make up for the size difference). I never got to function check the promag drum because I could not get it to fit. Loading was not particularly difficult but all I got to do was then manually unload the drum. I returned it to Brownells.
