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.
Metal Finish: Black Hard Coat Anodized
Action: Semi-Complete
Caliber: 5.56x45mm NATO
Barrel Length: 13.70"
Capacity: 13.70"
Trigger: 4150 Chrome Moly Vanadium Steel
Safety: 1:7"
Oal: Combat Grade
Weight: Black Nitride
Stock Description: B5 Bravo
Muzzle: NOX9 Flash Hider Pinned & Welded
Receiver Material: Aluminum
Sights: None
Barrel Description: Combat Grade
Twist: 1:7"
Barrel Length Range: 13" to 13.99"
Stock Finish Group: Black
Metal Finish Group: Blued/Black