Durable Impact Resistant Glass Fiber-reinforced Matte Black Polymer Construction. Steel-reinforced Locking Lugs. Reliable Feed High Visibility Blue Follower and Stainless-steel Spring. 30 Round Capacity with Left and Right Side Co-molded Polymer Windows and Debossed Round Count Indicators. Raised Bosses for Added Grip Retention. Easy Disassembly and Maintenance with Removable Flared Floor Plate