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Questions & Answers
Does the 11.5 inch barrel use a carbine or mid-length gas system?

Carbine. pretty standard on most 11.5s

by Al, Verified Owner, April 13, 2025
Is the 12.5 a carbine gas tube or mid-length , it says both ?

Criterion’s website says the10.5- 12.5 Core Barrels uses a Carbine Length Gas Tube. The 13.9-16 in Core barrels use the Mid-length gas tube.

by Krasz, Verified Owner, January 21, 2025
Customer Reviews
Helpful Positive Review
Excellent 11.5" (first look) by YankeeBluejeans, Verified Owner, March 14, 2026
Bought this based off of the good professional reviews. IME the 11.5" is the perfect combination of compact and smooth shooting. Fit and finish is first class, inside and out. Using a bore scope, the chamber and bore was smooth and uniform. Checks o...
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2/2 found this helpful
Most Recent Reviews
Awesome Barrels by Steve, Verified Owner, June 21, 2026
Best barrel i have ever shot. 12.5" never had a rifle first day out after setting scope to shoot under 1/2" groups at 100yds. Even when the suppressor is to hot to touch and forearm is getting too hot still holds group. Run scenarios from close 25yd...
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Read All 2 Reviews
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Product Info for Criterion Barrels AR-15 SBR Core Threaded Barrel

Criterion's CORE Series barrels are designed with tactical shooters in mind. These barrels are built to address issues with weight distribution, balance, and handling of traditional profiles, while increasing performance through consistent harmonics and uniform heat dissipation.image

The CORE Series feature a modern, continuous taper profile that eliminates steps and harsh variations in diameter. The steel is redistributed where it is needed most: surrounding the chamber. Added weight over the chamber absorbs heat evenly during hard use and moves the balance of the rifle closer to the body for increased control. This is optimal for maintaining balance when used with modern accessories like Low Power Variable Optics (LPVOs), weapon-mounted lights, suppressors, clip-on night vision devices, and IR lasers; these components boost the capabilities of the rifle, but can hinder the shooters performance by increasing front-end weight. The front end of the CORE Series remains light and fast for better handling, balance, and speed.

The CORE Series helps you handle real-world applications by maintaining exceptional performance and rugged reliability during hard use. These barrels work for you wherever mobility is a priority and performance is essential.

Specifications for Criterion Barrels AR-15 SBR Core Threaded Barrel:

Manufacturer: Criterion Barrels
Color: Black
Fabric/Material: CM-CrMoV
Caliber: .223 Wylde
Gas System Length: Mid Length
Barrel Twist Rate: 1-8
Barrel Material: 4150 Chrome Moly Vanadium
Gun Make: AR Platform
Gun Model: AR-15
Gas Block Journal Size-Length: .625 in
Firearms Threads Per Inch: 1/2x28

Features of Criterion Barrels AR-15 SBR Core Threaded Barrel

  • Chrome-lined internally for superior barrel life and corrosion resistance. Our chrome-lining process is the most refined in the industry and will not degrade accuracy.
  • .223 Wylde chamber that is designed to safely and effectively fire both .223 Remington and 5.56 NATO ammunition
  • Honed and hand-lapped rifling for bore uniformity and a pristine internal finish aids in barrel cleaning and paramount for accuracy
  • Finely polished chambers for reliable extraction and feeding
  • Carbine gas system compatible with AR15 gas tube system
  • Gas hole tuned for proper function with and without suppressor
  • 0.625in Gas Block, dimpled for ease of installation and solid lock-up
  • 1/228 TPI muzzle threads compatible with a wide range of muzzle devices and suppressors
  • Precision-machined barrel extension with M4 feed ramps

Package Contents:

  • Criterion Barrels AR-15 SBR Core Threaded Barrel

Criterion Barrels AR-15 SBR Core Threaded Barrel Orderable Models

List of Orderable Models

  • Criterion Barrels SBR Core Threaded Barrel, AR-15, .223 Wylde, 10.5in, CORE, Carbine, 1-8 Twist, 1/2x28 Thread, Chrome-Lined, Parkerized, 15100-CR6 , MPN: 15100-CR6 , Code: 2RR-ATB-SBRCO-15100-CR6
  • Criterion Barrels SBR Core Threaded Barrel, AR-15, .223 Wylde, 11.5in, CORE, Carbine, 1-8 Twist, 1/2x28 Thread, Chrome-Lined, Parkerized, 15110-CR6 , MPN: 15110-CR6 , Code: 2RR-ATB-SBRCO-15110-CR6
  • Criterion Barrels SBR Core Threaded Barrel, AR-15, .223 Wylde, 12.5in, CORE, Carbine, 1-8 Twist, 1/2x28 Thread, Chrome-Lined, Parkerized, 15120-CR6 , MPN: 15120-CR6 , Code: 2RR-ATB-SBRCO-15120-CR6
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Last updated 2026-08-24 UTC.