Bear Creek Arsenal 10.5" 5.56 NATO Stainless Steel Carbine Barrel

Manufactured by Bear Creek Arsenal
SKU: 1140-B556CM410.518-SS
MPN: 1140-B556CM410.518(SS)
Manufactured by Bear Creek Arsenal
1 Review

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NOTE: Limit 1 per household. Quantities exceeding 1 will not allow checkout.



All NFA and local laws apply, make sure you know them before ordering or installing this barrel.

This high quality Bear Creek Arsenal barrel goes through its entire production life in Sanford, North Carolina at Bear Creek's facilities. Drilling, reaming, rifling, and turning are all accomplished on their CNC machines under ISO-9002 Quality Systems, allowing Bear Creek to put every barrel through a 100% inspection and air gauging process, ensuring every individual barrel is flawless before it leaves their facilities.

This 10.5", 1:8 rifled, M4 contour barrel is machined from 416R stainless teel, heat treated to RC 28-32 hardness, and properly stress relieved. Chambered for 5.56 NATO, BCA expects that it, along with any of their barrels 16" or longer, will hold a 1 MOA group at 100 yards when used with appropriate ammo and shooting techniques.

Gas Port: Carbine length, 0.072"
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Barrel CoatingStainless Steel
Barrel ContourM4
Barrel Length10.5
Barrel LiningStainless Steel
Barrel Material416R Stainless Steel
BrandBear Creek Arsenal
Caliber Gauge5.56 NATO
Feed RampsM4
Gas Seat Diameter.750
Gas System LengthCarbine
Thread Pattern1/2 X 28
Twist Rate1:8

Ratings & Reviews

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Low price, high accuracy.


I have two of these barrels in AR15 pistols I have built. For the price, you would think they were less than excellent. Well, you would be wrong. Both pistols run fine with excellent accuracy. 11 degree muzzle crown, indexing pin is perfect and the bore is like a mirror. The first one I bought was "well, it IS a pistol, so..."
<br>But it was so good my wife wanted one. So, I bought another.
<br>I would recommend this barrel. The 1 in 8 twist is the icing on the cake since we shoot mostly M193 in these..