Tags: Weapon.
The NA-2 and NA-4 were two early factory prototypes created by Gennadiy Nikonov during the development of AN-94. Although they used a similar mechanism with the later prototypes of Nikonov AS and ASM the NA series differed in that they were of bullpup configuration which was later abandoned by Nikonov stating with the first AS prototype.The pistol grip of NA-2 and NA-4 is rather unusual even for this type of design.