Bear Creek Arsenal 20" .308 Winchester 1:10 Rifle Length Heavy AR-10 Barrel - Stainless Steel

SKU: B308RHB20110-SS
MPN: B308RHB20110(SS)
Manufactured by Bear Creek Arsenal


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Bear Creek Arsenal products complete their entire production cycle at their Sanford, North Carolina facilities. Drilling, reaming, rifling, and turning are all performed on CNC machines under ISO-9002 Quality Systems, allowing Bear Creek to precisely control each step of manufacturing. Careful inspection ensures each barrel meets their stringent standards before shipping.

This 20” .308 Winchester barrel for the AR-10 is machined from 416R stainless steel, heat treated to RC 28-32 hardness and properly stress relieved. BCA guarantees 1 MOA groups at 100 yards when observing proper shooting techniques and using high quality ammunition.

NOTE: This barrel is DPMS pattern and is not compatible Armalite pattern bolt carrier groups.
Bear Creek Arsenal does not recommend using steel cased ammo in their assemblies or rifles.

  • Chambered in .308 Winchester with a 1:10 twist rate
  • 416R stainless steel barrel
  • Heavy barrel profile
  • Salt bath nitrided barrel extension
  • Rifle length gas system
  • 5/8x24 thread pitch
  • AR-10 feed ramps
  • 0.750” gas seat diameter
  • Gas port diameter: 0.086" 
  • Weight: 3.1 lbs


Barrel CoatingStainless Steel
Barrel ContourHeavy
Barrel Length20
Barrel LiningStainless Steel
Barrel Material416R Stainless Steel
BrandBear Creek Arsenal
Caliber Gauge.308 Win
Gas Seat Diameter.750
Gas System LengthRifle
Thread Pattern5/8 X 24
Twist Rate1:10

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