1:9 *****
CORE15 Mil-Spec Forged 7075-T6 M-4 Upper and Lower Receiver, Type III Class II Hard-coat anodized finish, M4 feed ramps, (1913 Picatinny rail flat top) with dry lube internal finish and laser engraved T-markings. 16" 4150 Chrome Moly M4 profile Chrome Lined Barrel 1:9 Twist, Chambered in .223/5.56 x 45 mm NATO, Direct Gas Impingement Gas System.
Action Semi-Automatic
Caliber 223 Remington/5.56 NATO
Barrel Length 16"
Capacity 30+1
Trigger Standard
Safety Lever
OAL 35.5"
Weight 5.2 lbs
Stock Description 6-Position Black
Metal Finish Black
Muzzle A2 Flash Hider
Receiver Material Aluminum
Sights A2 Front
Barrel Description 4150 Chrome Moly Vanadium Chrome-Lined
**********Twist 1:9"**********
Barrel Length Range 16.00" to 17.99"
Weight Range 4.00 lbs to 5.99 lbs
Hand Right
Stock Finish Group Synthetic
Metal Finish Group Blued/Black