I picked up 5 of these a couple weeks ago from PSA on sale for 22.99$. I had read some bad reviews online but figured I would try them out anyway since several of the rifles they didn't work good in were the crap socom model. I took 3 with me today to the range and ran 200 rounds total through them. I loaded each one at least 3 times and ran them dry with zero problems. Even doing a rapid fire dump didn't make them miss a beat. The finish was nice and they lock right in and come right out great. If you are looking for m1a mags I wouldn't hesitate to snap some of these up.