Bear Creek Arsenal 10.5" 5.56 NATO M4 Contour 1:7 Carbine 41V50 Barrel - Parkerized

SKU: B556CM410-517-P
MPN: B556CM410.517(P)
Manufactured by Bear Creek Arsenal
2 Reviews


Out of Stock


Out of Stock


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", 1:7 twist, M4 contour barrel is machined from 41V50 chrome moly vanadium steel, heat treated to RC 28-32 hardness, and properly stress relieved with a durable parkerized finish. Chambered for 5.56 NATO.

Gas Port: Carbine length, 0.093"


Barrel CoatingManganese Phosphate
Barrel ContourM4
Barrel Length10.5
Barrel LiningManganese Phosphate
Barrel Material41V50 Chrome Moly Vanadium Steel
BrandBear Creek Arsenal
Caliber Gauge5.56 NATO
Feed RampsM4
Gas Seat Diameter.750
Gas System LengthCarbine
Thread Pattern1/2 X 28
Twist Rate1:7

Ratings & Reviews

2 reviews

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Perfect Budget Barrel

by -

I'm a firm believer in you get what you pay for. I took a chance on this for a budget build. Barrel is flawless. No accuracy issues and the added dimple under the gas block is a nice touch you normally only see on more expensive barrels. I'd recommend this even for a high end build.

Good barrel, Great price

by -

Bought this barrel on sale. Fired 145 round through it on my first range trip. 0 malfunctions of any kind. Seemed to hit constantly out to 100 yards, did not bring a target to zero my rifle with as I was just function testing, so I was using the zero on my red dot for a 300BLK build but it hit in the same place everytime, though not on the dot obviously. Will zero it next range trip.