Sons of Liberty Gun Works M4 L89 11.5″ 5.56 Barreled Upper Receiver

Sons of Liberty Gun Works M4 L89 11.5″ 5.56 Barreled Upper Receiver

The L89 Series of M4’s represents SOLGW’s uncompromising commitment to the professional end user.

At the heart of the M4 L89 is Sons of Liberty’s new Liberty Fighting Barrel. It is made from 41v50 and chrome-lined with 5R rifling for accuracy and service life.

The L89 DriveLock rail is incredibly rigid and has a robust lock up, making it a great handguard for mounting weapon accessories onto. It provides minimal rail flex for use with barricades and/or laser use without excess weight or bulk.

Specifications

• Caliber: 5.56mm
• Color: Black
• Upper Receiver: Forged, Milspec
• BCG: None
• Rail: 10.75″ L89 Rail
• Barrel: 11.5″ Liberty Fighting Barrel, 1:7 Twist, 5R, Chrome-Lined
• Gas System: Carbine Length
• Gas Block: Low Profile SOLGW
• Charging Handle: None
• Muzzle Device: A2 Bird Cage