Bear Creek Arsenal 10.5" 300 BLK Heavy Contour 1:7 Carbine 416R Barrel - Stainless

SKU: B300CHB10.517-SS
MPN: B300CHB10.517-SS
Manufactured by Bear Creek Arsenal
6 Reviews



In Stock

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In 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, heavy contour barrel is machined from 416R stainless steel, heat treated to RC 28-32 hardness, and properly stress relieved. Chambered for .300 BLK.

Gas Port: Carbine-length, 0.072"


Barrel CoatingStainless Steel
Barrel ContourHeavy
Barrel Length10.5
Barrel Material41V50 Chrome Moly Vanadium Steel
BrandBear Creek Arsenal
Caliber Gauge300 BLK
Feed RampsM4
Gas Seat Diameter.750
Gas System LengthCarbine
Manufacturer.Bear Creek Arsenal
Thread Pattern5/8 X 24
Twist Rate1:7
Weight1.73 lbs

Ratings & Reviews

6 reviews


Gas port is too small for the dwell time of the system.


I purchased one of these only in blue rather than stainless. As provided I was unable to get the weapon to cycle. with the carbine length gas system. It required drilling out the gas port to enlarge it to provide enough back pressure to cycle the system. Otherwise, it was and is an excellent barrel. If it were not for the gas system issues, I could give it five stars with no question.

Good for the price

by -

So overall the barrel seems great shooting 1 inch groups at 100 yards, however I have to manually charge every round. If running the jp scs you will have cycling issues, because cycling is non existant. Just my experience but customer service is top notch the are exchanging the barrel for the pistol length system variant. That's why it's getting 4 stars.

I love this barrel!

by -

I love this barrel! I have used bear creek barrels on all my builds have never had a single issue! This one is just as good as the rest!

Good barrel for good$

by -

I've built two ARs with this barrel. Workmanship is good, overall quality is good. I love the carbine length gas system (very easy to tune) and none of the pistol-length crap. Accuracy is good for what it is (short). Very satisfied.

Get a pistol length gas system!!

by -

Not enough gas pressure to push bolt back far enough to load another round. Garbage. Get a pistole length gas system.


by -

high quality manufacturing. accepts gas block easily, lines up perfect. chambers and ejects rounds cleanly. shipped fast with no hassles.haven't fired yet but expect accuracy to be acceptable from the 10.5 inch barrel. Rifling and interior barrel appears unblemished. barrel mics even along the length. i can't find any faults.