I love the pmags! They feed reliably and the 20rd mags will fit in my rifle carry case while inserted in my rifle.
I just noticed teh caveat below the video. I have no issue with any PMAGs not fitting in my M&P15 stripped lower that I got for my build. YMMV, but I wanted to let folks know that with the 'standard' lower style M&P15, they should be ok. I run windowless 30 rounders with no issues at all.
These are very reliable mags. Never had a issue with the 20 or 30rnd mags. They didnt drop free from my Bushmaster lower until I hit them with a file in the right spots. It only took a couple swipes. Oh and to all who are wondering... Bushmasters are super high quality. BCM makes great parts but their lowers are identical to Bushmasters in quality and reliablity
Yes the tops dont snap onto the bottom, hence 4 stars, but bro right before me, you act like Bushmaster is quality....? Try it in a BCM lower and you'll see there's no problems with the mag....
Must be pulled from mag-well upon ejection from both of my lowers, one of which is a Bushmaster.
The 20 rounder seems a little less featured than the 30 round pmag. First, the follower in this one tilts down at the primer end of the cartridge making loading a little more difficult and tedious than it is in the 30 rounders in my possession. The followers look the same in the two instances other than a stamped (M) at the bullet end of the top of the follower in the 30 rounders. Perhaps there is an updated version in 30 round magazines, but I have no idea. Secondly, the protective cap does not reinstall on the bottom of the magazine like it does on the 30 round pmags. Sort of a bummer cause, well, there's no other good place to put that thing. Otherwise, the magazine works just as it is supposed to, it feeds well, and I'm sure it would put up with the same level of abuse as the 30 round pmags as proven so thoroughly. I gave it four stars because of the aforementioned complaints that I personally have with it. I'd still count on it just the same though.
The polymer PMAG is the perfect mag to use in my ArmaLite AR180B especially since the 180B has a polymer lower and magazine well. It functions perfectly and can't damage the polymer magazine well as steel magazines can. The magazine feeds perfectly and insertion and removal are a breeze. Great Product!
I've used a couple of the other metal 20 round mags and this composite type is by far the best. It loads/drops perfectly from my Mega Machines lower and just feels right.