That concerns not only specifically designed sound suppressors, but also such devices as muzzle compensators and flash suppressors.

A muzzle compensator is fitted, and the shoulder stock is formed of steel rods that slide alongside the receiver when retracted.

It came with a unique muzzle compensator that could be turned off for use with a flash hider or grenade launcher without interfering when also installing a bayonet.

In the first season and for several subsequent seasons, the pistol that Hunter carries is a Heckler and Koch P9S 9 mm with a muzzle compensator attached.

Also, many rifles available today now have effective recoil attenuating features built in to them, such as muzzle compensators and energy absorbing stocks and butt-pads, that can significantly lessen recoil as it is felt by the shooter.

An improved version, the Mark II Austen, which had an accompanying dagger type bayonet that was designed to fit over the muzzle compensator was designed, expanding on the use of diecasting, and produced in limited numbers with only 200 examples of this model being produced.