BCA AR-15, 7.5" 4150 Chromoly Steel Barrel in Black Nitride Finish, 5.56 NATO, Pistol Length Gas System w/ 1:7 Twist
SKU - B556PM47.517(M)
- 7.5" 4150 Chromoly Black Nitride Barrel
- Contour Barrel Profile
- 1:7 Twist
- No Flutes
- 5.56 NATO Caliber
- Pistol Length Gas System
This BCA AR-15 Barrel is a 7.5" M4 contour barrel profile made of 4150 steel with a black nitride finish. It has a 1:7 twist rate and is chambered in 5.56 NATO.
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||0.086|
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