AN 94 operating mechanism of two round burst

AN-94 Disassembly and Reassembly HD - This is how the Russian AN 94 assault rifle achieves it's super accurate two round burst by accumulating the recoil force of both shots in to a single backward movement of the barrel and inner receiver. First thing to notice is that this weapon has a barrel attached to an internal receiver which contains bolt carrier and bolt, altogether called Integrated Firing Unit(IFU), which slides inside the external receiver. IFU comes in