Features: 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 US PAT. D849178