Barrel 18'' .308 AR M118 1x10 Chrome Lined By Criterion **

Price: Starting at $389.95

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Criterion .308 AR Match-Grade Barrels are engineered with the M118 LR match chamber, offering compatibility with both 7.62×51 NATO and .308 Winchester ammunition. This chamber is optimized for longer, heavier projectiles, making the barrel highly adaptable across a wide range of shooting disciplines—whether you're competing, on duty, or out in the field hunting.

The Hybrid contour—Criterion’s most popular profile—delivers an ideal mid-weight balance. Material is thoughtfully distributed along the barrel to enhance heat dissipation and maintain consistent harmonics. It’s light enough for all-day carry in the field, yet rugged and accurate enough for high-volume fire under demanding conditions.

FEATURES

Designed to fit DPMS LR308 Gen 1 platforms
Chrome-lined interior extends barrel life and resists corrosion—Criterion’s advanced lining process maintains peak accuracy
Hand-lapped rifling ensures a smooth, uniform bore for improved accuracy and easier maintenance
Precision-polished chamber ensures smooth extraction and reliable feeding
Compatible with standard AR-15 mid-length gas systems
Gas port is properly tuned to cycle reliably, suppressed or unsuppressed
0.750” gas block journal, dimpled for simple and secure gas block installation
5/8-24 TPI muzzle threading allows compatibility with a wide selection of suppressors and muzzle devices
Includes a precision-machined barrel extension with M4 feed ramps for improved feeding reliability

Disclosure: Chrome-lined barrels are finished chambered and cannot be altered. They may not be compatible with all rifle receivers and/or bolt combinations. While most rifles are designed to accommodate chrome-lined barrels, some receivers/bolts may have tolerance allowances that can prevent the barrel from being properly headspaced. It's important to carefully consider the compatibility of a chrome-lined barrel with your rifle receiver before making a purchase. If you're unsure whether a particular barrel or bolt will fit your rifle, contact us for information about our headspace verification services. It is the only way we can guarantee your completed rifle is within specs and safe to fire.