Sons of Liberty Gun Works M4-EXO3 5.56 AR-15 Rifle - 13.7"

The M4-EXO3 is the third generation of our proven EXO series fighting rifles. Their rifles are built with duty and service in mind, whether it be Law Enforcement, Hunting, or home defense. Their EXO series rifles have everything you need and are built to require minimum maintenance for years. They share all their specs with you because it's not about what a rifle company tells you, it's about what they don't. Specifications: Barrel: Sons of Liberty Gun Works 4150CoMOV 1:7 MPI HPT Barrel Caliber: 5.56 NATO Chamber Barrel Steel: 4150 CrMoV (Chrome Moly Vanadium per MIL-B-11595E) Twist Rate: 1/7 Twist Six Groove Thread Pitch: 1/2-28 Threaded Muzzle Gas Block: .750 Gas Block Journal with appropriately sized gas port Weight: 25 Ounces Barrel Finish: QPQ Corrosion Resistant Finish Barrel Extension: QPQ coated M4 Feed Ramp Extension High Pressure (proof) Tested (HPT) Magnetic Particle Inspected (MPI) With "F" Marked Taper Pinned Front Sight Block Midlength Gas System with P/W Nox & B5 Stock