Metalform AR-15 COLT STYLE MAGAZINE 9MM 20RD STEEL GRAY 9SMG.20.S

Rugged, all-steel, high-capacity magazines for 9mm AR-15 conversions that use a Colt-style magazine. Metal follower won’t distort under a full load and aids smooth, reliable feeding. Hold-open feature works with ARs fitted with hold-open on the conversion block. Easy-to-remove floorplate makes disassembly fast and simple. Fits Colt and Rock River conversions with a lower receiver conversion block.