FEATURES:

The M4-89 is the premier fighting rifle we offer. It houses our combat grade barrel, A5 buffer system, Liberty Fighting Trigger, Ambi Liberty Charging Handle, ambi Quick Selector, and B5 furniture. At Sons of Liberty Gun Works, we always tell our customers that it’s not what a rifle company tells you, it’s what they don’t tell you. Below you will find the complete specifications of the M4-89.

Barrel: Sons of Liberty Gun Works 4150CoMOV 1:7 MPI HPT Barrel
Barrel Steel: 4150 CrMoV (Chrome Moly Vanadium per MIL-B-11595E)
Barrel Finish: QPQ Corrosion Resistant Finish
Barrel Length: 16" 
Barrel Extension: QPQ coated M4 Feed Ramp Extension
9 position A5 Buffer System with Sprinco Green Spring
Quick Ambi Selector – Billet Steel, 50* rotation, Ambi, QPQ Finished
Liberty Charging Handle with high gas shelf (ambi)
Liberty Fighting Trigger
Steel M89/DriveLock barrel nut
Finish: OD Green