Fab Defense VFR Carbine Length M-16 for M16 & AR15 carbines – 4 picatinny rails (top, bottom, left & right – the side and bottom rails are removable to evolve according to the operational context). 6061 T6 aluminum construction, hardened anodized coating, level marking in the gaps, perfect alignment with the receiver, fixing on the cylindrical nut and via the superstructure rail – the barrel remains free-floating, designed exclusively for “carbine length” carbines.

