Don't take this as a hit against Magpul. I like pmags, but keep an eye on the feed lips. Last year we had several duty carry mags (223) go down because of broken feed lips. They were cracking at the front, bottom edge of the feed lip. Cracks ran perpendicular to the mag body toward the spine of the mag. Another buddy in a different district had 1 where the spine of the mag separated, splitting the mag in half. This was a new mag that he didn't think had ever been shot, just loaded and kept as an emergency reload in the patrol car. I still have a bunch of pmags. This was enough though to make me keep some metal mags on hand. For the SR25 (Rem R25) I keep pmags and ASC mags. So far I've had pretty good luck with the ASC 20rd SR25 mags. I know they make 10rd mags, no experience w/ them though since not in california. Their 20rd mags run mid $20 if I remember. Worth checking out.