Abstract: Thrust from a plurality of nozzles disposed between the chamber and nozzle of a gun provide a vertical component of force to counter muzzle jump and gun rise and a horizontal component of force to compensate for asymmetric support of the gun to increase the accuracy of subsequent shots and to reduce the time necessary to return the gun on target.

Abstract: An ambidextrous thumb safety for a Model 1911A-1 type semiautomatic pistol includes a pair of pivoting interconnected left and right thumb safeties operating in concert and responsive to a thumbing action imposed upon either one. The left-hand thumb safety on the right side of the pistol includes a forwardly extending tang slidably guided within a retaining slot formed in the right side of the frame of the pistol to guide the thumb safety through a limited arcuate movement and to prevent outward translation of the left-hand thumb safety along its pivot axis.

Abstract: A grip safety for use in a Model 1911-type semiautomatic pistol having a staggered double-column magazine includes a grip safety having extensions for filling the posterior ends of slots accommodating translational movement of the trigger body.