Abstract: A sound suppressor for a firearm, including a hollow cylindrical casing having an entrance end and an exit end; and at least one disc-shaped baffle element coaxially mounted within the casing and between the ends. The element has front and rear faces with an annular area therebetween and at least one opening in its rear face. A centrally apertured entrance end plug is attached to the entrance end of the casing and is mountable to the muzzle of a firearm. A centrally apertured exit end plug is attached to the exit end of the casing. The baffle element has a primary opening therethrough with at least one slanted sidewall and at least one secondary opening arranged between the annular area and the slanted sidewall.

Abstract: A sleeve is slidable longitudinally of a can, on a weapon, containing sound suppressing means, between a first position retracted onto the can and a second position extending forwardly from the can with only adjacent ends lapping, to enhance sound suppressing action when the sleeve is moved to the second extended position. A longitudinally extending slot in the sleeve, with laterally extending notches, and a stop disposed in the slot to limit movement of the sleeve on the can. A knob with lock means to secure the stop in a selected notch of the slot.

Abstract: A bullet-proof clipboard, for use by police officers and the like, with a weapon secured to the underside with concealing shielding. The barrel of the weapon points at the end of the clipboard normally away from the user. A trigger is exposed at a convenient location for firing. A light on the clipboard is directed at the location where papers are secured. Pointing of the clipboard at a person results in pointing the weapon at the person. The light can also be directed in the same direction as the weapon.