The 20.77" 6.8 SPC barrel has a HBAR profile and is the same barrel used on our Model 7 rifle. The barrel has a 1/11 twist with a SAAMI SPEC 2 chamber. The barrel extension is pre-installed and headspaced.
Chamber: 6.8 SPC SAMMI SPEC 2
Diameter at the gas port: .750"
Barrel Threading: None - Target crown
Barrel Profile: Heavy barrel (HBAR)
Barrel Material: 410 Stainless Steel
Twist Rate: 1/11 w/ 4 grooves
Bore & Barrel Lining: None
Barrel Coating: Proprietary Stag-7 anti-reflective finish
Gas System: Rifle length direct impingement
Q: Will this work with my upper receiver?
A: The barrel will work with any mil-spec upper receiver. If you have a left hand upper receiver, please make sure to purchase the barrel with an ambi barrel extension to ensure the bolt will properly lock into the barrel extension.
Q: Do you provide instructions on how to install the barrel?
A: Unfortunately we don't provide directions on how to install a barrel and recommend that it be installed by a gunsmith to prevent damage to the rifle.
Q: Do I have to purchase a matched bolt to my barrel?
A: With AR-15's as long as you are using the proper bolt for the caliber you do not need to match a bolt to the barrel.