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Criterion Barrels 18in AR-10 Mid Length Gas System Barrel .308 M118 LR 1-10 Twist Stainless Steel

Criterion Barrels 18in AR-10 Mid Length Gas System Barrel .308 M118 LR 1-10 Twist Stainless Steel

Criterion Barrels · Barrels

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Best price

$281.29at MidwayUSA

In stock Sale checked Oct 13, 2026

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StorePriceAvailabilityBuyAdd to build
MidwayUSA Best price $281.29Salechecked Oct 13, 2026 In stock Buy at MidwayUSA
OpticsPlanet $319.99Salechecked Oct 13, 2026 In stock Buy at OpticsPlanet

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

Lowest in-stock price in the last 30 days: $281.29 at MidwayUSA. Dashed line = out of stock. Tracking since Oct 12, 2026.

Show the prices as a table
StoreLatestLowestHighest
MidwayUSA$281.29$281.29$281.29
OpticsPlanet$319.99$319.99$319.99

Since Oct 12, 2026.

About this part

The Criterion Barrels 18in AR-10 Mid Length Gas System Barrel .308 M118 LR 1-10 Twist Stainless Steel is an 18" .308 / 7.62x51 barrel from Criterion Barrels with a mid-length gas system. It's sold by 2 stores (2 in stock), from $281.29 to $319.99. The lowest in-stock price in the last 30 days was $281.29 at MidwayUSA.

Fits and works with

Caliber
.308 / 7.62x51 · Shop matching ammo
Bolt
AR-10 (.308 / 6.5 CM) · Bolt carrier groups
Gas system
Mid-length · Handguards
Barrel length
18" · Handguards

Specifications

Manufacturer
Criterion Barrels
Platform
AR-10
Caliber
.308 / 7.62
Gas system
Mid
Barrel length
18"

From the manufacturer

Criterion Barrels 18in AR-10 Mid Length Gas System Barrel .308 M118 LR 1-10 Twist Stainless Steel. 308 AR match grade barrels feature the M118 LR match chamber that is compatible with both 7.62x51 NATO and .308 Win ammunition and is optimized for heavier longer bullets. The versatility of this barrel allows it to be used in a variety of applications from competition and tactical uses to hunting applications. 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. Specifications for Criterion Barrels AR-10 Mid Length Gas System Barrel: Manufacturer: Criterion Barrels Fabric/Material: Steel Caliber: .308 Winchester Barrel Profile: Hybrid Gas System Length: Mid Length Barrel Twist Rate: 1-10 Gun Make: AR Platform Gun Model: AR-10 Additional Features: Button Rifled Firearms Threads Per Inch: 5/8x24 Projectile Caliber: .308 Caliber Features of Criterion Barrels AR-10 Mid Length Gas System Barrel DPMS compatible Polished stainless steel finish 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 Mid-length length 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 lock-up 5/8x24 TPI muzzle threads compatible with a wide range of muzzle devices and suppressors Precision-machined barrel extension for M4 feed ramps Package Contents: Criterion Barrels AR-10 Mid Length Gas System Barrel What firearm models does the manufacturer say Criterion Barrels AR-10 Mid Length Gas System Barrel is compatible with? The manufacturer says that Criterion Barrels AR-10 Mid Length Gas System Barrel is compatible with AR-10Criterion Barrels 1018S-HYM: 18in AR-10 Mid Length Gas System Barrel .308 M118 LR 1-10 Twist Stainless Steel

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$281.29 at MidwayUSA
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