Excellent choice - Magpul Industries PMAG 10 GEN M3 AR-15/M4 10-Round .223/5.56 Magazine

You can’t go wrong with these magazines.
Easy to handle and manipulate when you’re loading rounds into the magazine, and when you’re loading the magazine into the Magwell.
They easily stand vertically on their own, even after fully loaded due to its flared base.
I like the soft polymer feeling and texture of these magazines opposed to the thin metal and slippery casings of other magazines.
The follower plate does not rattle around inside and create a bunch of unnecessary noise.
I find them worth every penny.