This is the most widely used and popular brand magazine for the 9mm AR-15. Rugged, all-steel, high-capacity magazines for 9mm AR-15 conversions that use a Colt-style magazine. Metal follower will not distort under a full load and aids smooth, reliable feeding. Hold-open feature works with ARs fitted with hold-open feature on the conversion block. Easy-to-remove floorplate makes disassembly fast and simple. Fits All major brand conversions with a lower receiver conversion block. Mfg: Metalform SPECS: Cold-Rolled Steel, Black Oxide Finish, (10 round). 9mmAR.com cannot bill to or ship 10-round magazines to the following states: New York. DO NOT ORDER THIS PRODUCT, if you live in these locations. If you live in these locations and wish to purchase a higher capacity magazine, elect new leaders who do not want to take away your second amendment rights.
Posted by Ron Ross on 28th May 2015
I live in Kalifornia and am subject to the 10 round rule. Ten round 9mm magazines are rare and I read all kinds of complaints about other magazines and mostly good for the Metalform mags so I thought I would give them a try. After purchasing 3, I wish I had gotten more. They are great magazines for sure.
Posted by kce on 12th Apr 2015
These mags work great. I use them in both a Promag & Hahn magwell block. Metal follower makes for reliable feeding & hold open. Yes the spring is stiff but with reloading tool not a problem. I wish they made 308 mag too.
Posted by craig on 22nd Jan 2015
I am using a Hahn mag block I purchased two of them and both will not feed. Properly promag Feed and work correctly
Posted by Unknown on 14th Jul 2014
The magazine gets stuck in the mag well, won't engage the mag catch unless you pound on it and won't lock the bolt back. This is on a Colt Factory 9mm carbine. Will be returning.
Posted by Robin on 12th Mar 2014
Functions well, but loading is a bear. Had to use both thumbs until tired, then both fore fingers to push down on the rounds. I will try one of those loading helpers (an uplula) maybe that will help. a single stack would be easier to load rather than a double stack in my opinion.
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