Kel-Tec RDB 5.56mm NATO 17.3in Black Modern Sporting Rifle - 20+1 Rounds -Kel-Tec's RDB bullpup design provides a compact, well-balanced rifle featuring a revolutionary downwards ejection and fully ambidextrous controls, enabling it to be fired from both the dominant and non-dominant side. The result is casings eject out of your line of sight for a truly high performance rifle. The RDB maintains a center of gravity over the grip assembly to facilitate ease of handling and balance. It comes equipped with two integral MIL-STD-1913 Picatinny rails, located above the barrel and on the handguard for mounting accessories and multiple sling attachment points compatible with a hook-style swivel. It is compatible with AR-15 style magazines. This RDB model has a 17.3in barrel and a black finish. It includes a 20-round magazine.