Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Gyrojet is a family of unique firearms developed in the 1960s named for the method of gyroscopically stabilizing its projectiles. Firing small rockets rather than inert bullets, they had little recoil and didn't require a heavy barrel to resist the pressure of the combustion gases. Velocity on leaving the tube was very low, but increased to around 1250 feet per second (380 m/s) at 30 feet (9.1 m).

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