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Questions & Answers
What is the weight of this barrel? Expert Answer

The Criterion Barrels AR-15 Hybrid Carbine Length Gas System Barrel 16" model weighs 2.05lbs and the 18" model weighs 2.30lbs.

by Hunter, Gear Expert, July 20, 2023
Gas block diameter?

Description claims 0.750

by Alex, Verified Owner, October 10, 2020
Customer Reviews
Helpful Positive Review
Great barrel. Pretty accurate. After researching the company and all the grey reviews from their customers and government contracts I decided to give it a try. I would recommend this barrel to anyone who wants a high quality barrel.
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Product Info for Criterion Barrels AR-15 Hybrid Carbine Length Gas System Barrel

Their most popular configuration, the Hybrid contour is a mid-weight barrel that offers a perfect balance between weight and intelligently distributed barrel material for excellent heat absorption and consistent harmonics. This barrel can be easily carried in the field all day but will also provide exceptional performance even under extreme use and high rates of fire.image

Specifications for Criterion Barrels AR-15 Hybrid Carbine Length Gas System Barrel:

Manufacturer: Criterion Barrels
Fabric/Material: Steel
Caliber: .223 Wylde
Barrel Profile: Hybrid
Gas Block Journal Size-Diameter: .750 in
Barrel Twist Rate: 1-8
Flutes: No
Gun Make: AR Platform
Gun Model: AR-15
Additional Features: M4 Barrel Extension
Firearms Threads Per Inch: 1/2x28

Features of Criterion Barrels AR-15 Hybrid Carbine Length Gas System Barrel

  • Chrome-lined internally for superior barrel life and corrosion resistance. Their 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
  • 0.750" Gas Block, dimpled for ease of installation and solid lock-up
  • 1/2x28 TPI muzzle threads compatible with a wide range of muzzle devices and suppressors
  • Precision-machined barrel extension with M4 feed ramp

Package Contents:

  • Criterion Barrels AR-15 Hybrid Carbine Length Gas System Barrel

Criterion Barrels AR-15 Hybrid Carbine Length Gas System Barrel Orderable Models

List of Orderable Models

  • Criterion Barrels 18in AR-15 Hybrid Carbine Length Gas System Barrel, Stainless Steel, 1518S-HY12 , MPN: 1518S-HY12 , Code: 2RR-ATB-CLHYBRID15-1518S-HY12
  • Criterion Barrels 16in AR-15 Hybrid Carbine Length Gas System Barrel, Chrome-lined, Parkerized, 15160-HY6 , MPN: 15160-HY6 , Code: 2RR-ATB-CLHYBRID15-15160-HY6
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Last updated 2026-09-16 UTC.