BARREL LENGTH: 16?
CALIBER: .223 Wylde
TWIST RATE: 1:9
PROFILE/CONTOUR: Heavy-Diamond Fluted
MATERIAL: 4150 Chrome Moly Vanadium
FINISH: Parkerized
GAS SYS: Carbine
DIAMETER AT GAS PORT: .750?
MUZZLE THREAD: 1/2-28
TREATMENT: Non RF85
ADDITIONAL SPECS/NOTES: Barrel is compatible with 5.56 NATO & .223 Ammunition.