 Doing so will produce a very distinct "click" rather than the loud sound of the bolt slamming forward.The forward assist had been implemented in 2007 on the MSAR STG-556, a U.S.-made clone of the Austrian Steyr AUG rifle, but the usefulness of such device is questionable, since the design is not normally prone to the malfunction that led to the need of the forward assist in other firearms; in fact "Microtech Small Arms Research Inc.", the manufacturer of the STG-556, has dropped the forward assist on all rifles manufactured since November 2008.The forward assist may cause the cartridge to become jammed, requiring a cleaning rod to be pushed into the muzzle of the rifle to force the casing back out of the chamber.