Sons Of Liberty Gun Works M4-89-13.7-XL M4-89 5.56x45mm 13.75" Black QPQ Steel Barrel, Black Hard Coat Anodized Picatinny Rail Steel Receiver, Black Synthetic B5 Bravo Stock, Black Polymer Grip
The M4-89 is the premier fighting rifle, it houses our combat grade barrel, A5 buffer system, Liberty Fighting trigger, Ambi Liberty charging handle, ambi quick selector and B5 furniture.
