Criterion Barrels .223 Wylde AR-15 Barrel - Hybrid Profile - Carbine Length - Chrome Lined - 12.5"

Manufactured by Criterion Barrels Inc.
SKU: 15120-HY6
MPN: 15120-HY6
Manufactured by Criterion Barrels Inc.
4 Reviews

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Note: The National Firearms Act regulates the configurations of some firearms assembled with barrels under 16” long. Know the NFA laws in your state before purchasing this item.

The Criterion AR-15 Hybrid barrel is designed for extreme accuracy without the added weight that a typical HBAR contour has. These barrels are chambered in .223 Wylde with a 1:8 button rifled twist rate to squeeze out every bit of accuracy possible. The chrome lining process makes the bore extremely hard to withstand the constant friction of a high-powered round passing through resulting in a long barrel life. The bore is then hand-lapped to make sure the lands and grooves are as smooth and consistent as possible to further ensure you are getting the most accuracy as possible. This 12.5 inch barrel is built with a carbine length gas system and an optimized gas port size to ensure reliable function with both 5.56 and .223 ammunition. If you are building a new AR-15 and accuracy and reliability are at the top of your checklist, then check out the Criterion Hybrid line of barrels.

  • 12.5” barrel with .223 Wylde chamber
  • Hybrid barrel contour
  • Chrome lined and hand lapped bore
  • 1:8 button rifled twist
  • Carbine length gas system with .750” diameter
  • Dimpled beneath the gas port
  • Weight: 1.65 lbs

This Criterion AR-15 barrel also features a dimple beneath the gas port for set screw style gas blocks. This makes sure that the gas block is securely mounted and won’t move around while firing. This barrel is made from 4150 chrome moly vanadium steel and has a parkerized finish. This Criterion Hybrid barrel is built to withstand years of heavy use while providing exceptional accuracy.

Criterion Barrels are known for building high quality, precision AR-15 and AR-10 barrels as well as barrels for older firearms like the M1 Garand, M14, and Lee Enfield. Their barrels are used by the US Army Marksmanship Unit Action Shooting Team and the US Marine Corps Combat Shooting Team and are proven to win matches time and time again.
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Barrel CoatingParkerized
Barrel ContourHybrid
Barrel Length12.5
Barrel LiningChrome
Barrel Material41V50 Chrome Moly Vanadium Steel
BrandCriterion Barrels Inc.
Caliber Gauge.223 Wylde
Feed RampsM4
Gas Seat Diameter.750
Gas System LengthCarbine
Thread Pattern1/2 X 28
Twist Rate1:8
Weight1.65 lbs

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see

California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

Ratings & Reviews

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Awesome product from an incredible retailer.

by -

Criterion Barrels are second to none. Why would buy anything other than 223 Wylde?
<br>You will love the barrel, but not as much as Primary Arms. They are perhaps the most helpful and caring online retailer you will find. Shipping is quick and help is always just an email away. You'll get a quick and personalized reply. Highly recommend PA and Criterion!

great barrel


just like I suspected accurate heavy duty chrome lined barrel very pleased for serious builders.

great barrel


criterion barrel are great ar barrels i have this one on a pistol accurate groups at 50 and 100 yards very pleased

great barrel


bought this barrel from primary and performance is great, I would recommend it. 1 inch groups at 100 yards