Criterion Barrels 18in AR-10 Rifle Length Gas System Barrel .308 M118 LR 1-10 Twist 416R Stainless Steel
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Criterion Barrels
Overview
The Criterion Barrels 18-inch AR-10 barrel is designed for the .308 Win caliber and features a rifle-length gas system, which promotes smoother cycling and reduced recoil for enhanced accuracy. With a 1:10 twist rate, this barrel is optimized for stabilizing a variety of bullet weights, making it versatile for different ammunition choices. This barrel is often found in precision builds where reliability and accuracy are paramount, particularly for long-range shooting applications.
Specifications
Criterion Barrels 18in AR-10 Rifle Length Gas System Barrel .308 M118 LR 1-10 Twist 416R Stainless Steel
Build history on GunPartPicker
Builders have been adding the Criterion Barrels 18in AR-10 Rifle Length Gas System Barrel .308 M118 LR 1-10 Twist 416R Stainless Steel to their builds on GunPartPicker since March 2026. All time, it ranks #222 of the 763 barrels builders have added.
It was hard to find in August 2026, in stock on only 4 of the 10 days we checked, and today the one retailer we track has it in stock. Prices barely moved in August 2026, holding around $337.24, so there haven't been real sales lately. Buying today, the lowest price is $337.24 at Optics Planet, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
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