BCA AR-15 20" Black Nitride 4150 Steel Government Barrel, 5.56 NATO, Rifle Length Gas System w/ 1:7 Twist
The BCA AR-15 Barrel is a 20" goverment barrel made of 4150 steel with a black nitride finish, a 1:7 twist rate and a rifle length gas system. The barrel is chambered in 5.56 NATO and machined with M4 feed ramps.
All Finished Barrels go through a 100% Inspection Process.
Inspections Equipment includes CMMs and Air Gauges for the Bores.
BCA's expectations is that our Barrels, 16 inch or longer, will hold a 1.000" MOA at 100 yards with appropriate ammo and shooting techniques.
|Material||4150 Chrome Moly Vanadium|
|Thread Pitch||1/2 x 28|
|Gas Block System||0.750|
|Gas Hole Diameter||0.093|
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