Texas Arms Model-351 Gyrojet Pistol

Texas Arms Model-351 Gyrojet Pistol (a.k.a. Texas Arms 351 Gryojet Pistol in Deep Space) is a gyrojet pistol. Developed as a lightweight gyrojet weapon along the lines of the earlier Mark II models of the 20th century, the 351 pistol fires a 9mm rocket round. The range is 3x that of a normal pistol in a vacuum. The 351 is a commonly used military firearm, particularly on Luna, but is rarely seen Earth-side.