Lightweight compact design natural and intuitive grip - PDW stock extendable in 4 positions - AR-15 Pistol grip featuring interchangeable backstraps - Ambidextrous BREN 2-style controls (safety and magazine release) - Feeds from STANAG (223 Rem 300 BLK) and BREN 2 (7.62x39) magazines - M-LOK accessory interface - Large tactical bolt knob