KWA M11A1 NS2 Sub Machine GunKWA M11A1 NS2 Sub Machine Gun. The KWA M11A1, a gas powered submachine gun, pays respect to the classic mac11 from the 1970s. It's a compact and potent representation of the original M 11. Just like its real counterpart, the M11A1 utilizes an open bolt system, offering a remarkable rate of fire. This SMG is built for manoeuvrability featuring a collapsible stock with an insanely short barrel allowing you to easily take it around tight corners in any