Submachine guns (SMG) are lighter weapons which fire less powerful bullets (usually pistol bullets). They are much easier to conceal and carry than the heavier versions. Submachine guns have handles (stocks), and are carried by individual soldiers or police officers. Famous examples include the Uzi, the Heckler & Koch MP5, the Thompson (a.k.a. Tommy gun), the MAC-10, the PPSh, and the MP-40.