Criterion Barrels ULTRALIGHT, Rifle Gas, Chrome-lined 18-20"

Our Ultralight contour is a replica of the original government/A2 profile. It is a lightweight option for those who require a hard use barrel without any added weight. If you are looking for a handy and versatile rifle configuration, this is an excellent option.

Headspace (the bolt to barrel fitment), must be checked for optimal performance and reliability.  Proper headspace produces consistent chamber pressures and seating depths which results in increased accuracy and reliability, while reducing wear and tear on internal parts and components.  Add a headspace bolt to your order, and we will pair a bolt to your barrel for optimal performance.

FEATURES
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
Rifle 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
1/2×28 TPI muzzle threads compatible with a wide range of muzzle devices and suppressors
Precision-machined barrel extension with M4 feed ramps