Battle Arms Development has released their Enhanced Magazine Release Kit that consists of the Investment Cast Enhanced Magazine Catch, a Magazine Catch Spring, and a billet machined Enhanced Magazine Release! The Battle Arms Development Enhanced Magazine Release Kit features the Investment Cast Enhanced Magazine Catch that is made of 8620 Heat Treated Steel, with a lightweight fluted one piece engineering. The Enhanced Magazine Release is CNC Machined from billet 7075-T6 Aluminum, and features a concave V-Groove button face that offers an excellent ergonomic feel. BATTLEARMS Enhanced Magazine Catch - BAD-EMC-IC Process: Investment Cast (Same Process as Mil-Spec) Material Mfg: Battle Arms Development Inc.