Sons of Liberty Gun Works M4-EXO3 5.56mm 13.7" Bbl Mid Gas EXO3 Rail P&W NOX MOUNT Black Complete Fighting Rifle M4-EXO3-556-137-NOX-RIFLE-A-BLK

The Sons of Liberty Gun Works M4-EXO3 is a purpose-built "Fighting Rifle" that maximizes maneuverability by utilizing a 13.7-inch barrel. To meet federal requirements for a standard rifle, the SOLGW NOX Flash Hider is permanently pinned and welded (P&W) to the barrel, bringing the overall length to exactly 16 inches and avoiding NFA registration. This model features the lightweight EXO3 M-LOK handguard and a mid-length gas system, which is expertly paired with the A5 Buffer System to ensure a smooth, reliable cycling window even under heavy use. Built on 7075-T6 aluminum forgings and finished in hardcoat anodized black, it comes duty-ready with the SOLGW Liberty Fighting Trigger and a B5 Systems Bravo stock.