BCA AR-15 Barrel: 18" 416R Stainless Steel Contour Barrel, 6.5 Grendel Type II, w/ 1:8 5R Twist

Special Price $66.52 was $119.99
Out of stock

SKU: B6.5MHB18185R(SS)

  • 18" 416R Stainless Steel Barrel
  • Heavy Barrel Profile
  • 1:8 5R Twist
  • No Flutes
  • 6.5 Grendel Type II Caliber
  • Mid Length Gas System

The BCA AR-15 Barrel is a 18" contour barrel profile made of 416R steel with a stainless steel finish. It has a 1:8 5R twist rate and is chambered in 6.5 Grendel Type.

5R is an improvement over conventional rifling by changing the shape and configuration of the lands and grooves. Conventional rifling consists of either 6 or 4 symmetrical lands and grooves; however, in a 5R barrel, the lands and grooves are opposite of each other and sloped.The improvement reduces projectile deformation as it passes through the bore during the firing sequence and the projectile stays uniform instead of squeezing material on opposite side grooves. Hence, the more uniform projectile, the better the accuracy.

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.


More Information
SKU B6.5MHB18185R(SS)
Weight 2.7300
Length 18
Profile Heavy Barrel
Twist 1:8 5R
Finish Stainless
Material 416R Stainless Steel
Thread Pitch 5/8 x 24
Caliber 6.5 Grendel Type II
Feed Ramp .300 Blackout
Flutes N/A
Gas System Mid Length
Gas Block System 0.750
Gas Hole Diameter 0.089
Dimpled Yes
Platform AR-15