 The trigger mechanism permits fully automatic fire only but the rate of fire can be adjusted by using bolts of varying weight, like in the MG 3.The lighter bolts will produce the maximum rate of fire (1,200 rounds/min) while a heavier bolt results in a rate of fire of approximately 850–900 rounds/min.The weapon features a cross-bolt type safety that disables the sear when pressed into the "safe" position.