The Rifle Downward-eject Bullpup or RDB was constructed to include 11 innovations that have changed the game with semi-auto rifle; designed with a downward shell ejection system, Kel-tec was able to do away with the side ejection disadvantage of ordinary bullpups. Thanks to this process, the casings that eject out of the way of the shooters line of sight and a truly ambidextrous, high performance rifle. Additional features of the RDB include; Short stroke adjustable gas piston, rotary bolt locking system with spring loaded ejector & down facing extractor, folding reversible non-reciprocating charging handle, built-in eyelets on each side of aluminum receiver, Picatinny top rail, A2 birdcage flash hider, bottom railed textured aluminum handguard with removable angled foregrip, and built-in sling loops.