Sons of Liberty Gun Works M4 L89 14.5″ Pinned 5.56 Rifle
The L89 Series of M4’s represents SOLGW’s uncompromising commitment to the professional end user.
The M4 L89 is a 14.5″ rifle with a pinned muzzle device chambered in 5.56mm.
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. Behind the barrel is Sons of Liberty’s bolt carrier group — stringently QC’d and tested, backed by a MK2 buffer system for increased reliability and a smoother recoil impulse.
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.
At your fingertip and purpose-built for precision is the Liberty 2-Stage Trigger. The shoe is a wide-body and bow shape that finds the balance between a traditional trigger and a completely flat trigger.
Specifications
- Weight: 6 lbs 13.1 oz
- Caliber: 5.56mm
- Color: Black
- Lower Receiver: Forged, Milspec
- Upper Receiver: Forged, Milspec
- BCG: Sons of Liberty
- Rail: 13.75″ L89 Rail
- Trigger: Liberty 2-Stage Trigger
- Barrel: 14.5″ Liberty Fighting Barrel, 1:7 Twist, 5R, Chrome-Lined, Pinned Muzzle Device
- Gas System: Midlength
- Gas Block: Low Profile SOLGW
- Charging Handle: Low Snag Sons of Liberty
- Muzzle Device: HUXWRX 556 Flash Hider QD, Pinned
- Buffer: BCM MK2 T2
- Receiver Extension: 9-Position
- Brace: Magpul DT Carbine Stock
- Grip: Magpul K2
Regulations
This is a regulated item and requires shipment to a Federal Firearms License holder. After you have placed your order, please have your order number and a copy of your preferred store’s FFL emailed to info@rooftopdefense.com to avoid delays. After I have received their FFL, I will ship your order as soon as possible!



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