Sons Of Liberty Gun Works M48913.7 M4-89 5.56x45mm NATO 13.70" Combat Grade Barrel, Black, M-Lok Handguard, P&W NOX9 QD Flash Hider, Mid-Length Gas System
The M4-89 features a combat grade barrel, A5 buffer system, Liberty Fighting Trigger, Ambi Liberty Charging Handle, ambi Quick Selector and B5 furniture, NOX Flash Hider which is pinned and welded.
Determined at checkout.
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