The Stag 15 heavy barrel chambered in 5.56 is what you need for your next precision or Maryland compliant build. Coming it at 16 inches in length with a mid length gas system and modern QPQ Nitride coating, this barrel will give you years of service in your next rifle build or as a replacement barrel for your existing AR 15. This barrel is marked HBAR and is a compliance option for Maryland
Caliber: 5.56 NATO | .223
Diameter at the gas port: .750"
Barrel Threading: 1/2x28
Barrel Profile: Government Profile
Barrel Material: 4150 Chrome Moly Vanadium
Twist Rate: 1/7
Bore and Barrel Lining: Black Nitride
Barrel Coating: Black Nitride
Gas System: Mid-Length Direct Impingement
Q: Will this work with my upper receiver?
A: The barrel will work with any mil-spec upper receiver.
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.
Have yet to drop in this barrel but I do expect an item to match perfectly to what is ordered on the pictures it shows HBAR branded on the barrel. Mine only says STAG ARMS 5.56 NATO 1-7T 4150 MPI. A small gripe but now for fear of Maryland's ever increasing AR-15 hatred I need to carry a copy of the packing slip to prove that it is indeed a HBAR.