Sons of Liberty Gun Works M4-89 5.56 13.9" Pinned M-LOK Midlength Ambidextrous AR-15 Rifle

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. We have built our guns to run through years of hard use, and we have nothing to hide.LRF (Lower Receiver, Forward Controls Design) is a collaboration between Sons of Liberty Gunworks (SOLGW) and Forward Controls Design (FCD). Machined from a solid block of 7075 aluminum, LRF is an ambidextrous AR15 lower receiver with built-in right side bolt release.Barrel Specs: 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 Extension: QPQ coated M4 Feed Ramp Extension13.9 4150CRMOV BARREL with a NOX pinned and welded to make it a non-NFA rifle with a >16 OALGun Specs: 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