FROM PSA:
DETAILS
Caliber: 5.56 NATO
Barrel Length: 11.5″
Barrel Profile: Pencil
Barrel Steel: 4150 Chrome Moly Vanadium
Barrel Finish: Parkerized
Chrome Lining: Yes
Muzzle Thread Pattern: 1/2″ x 28
Twist Rate: 1 in 7″
Barrel Extension: M4
Gas System Length: Carbine
Diameter at Gas Block: .625″
Gas Block Type: Rifle Height Front Sight Base
Muzzle Device: A2 style
Receiver Material: Forged 7075-T6
Upper Receiver Type: C7 with feed ramps
Handguard Type: Standard 6 hole carbine
Bolt Material: Carpenter 158 Steel
Bolt Carrier Profile: Full Auto
Overall Length: 20″
Weight (as configured): 3.5 lbs
FEATURES
Later style 733 with C7 upper. Material is 7075-T6 The finish is Gray type 3 hard coat anodizing. Both barrel and receiver have M4 feed ramps.
