Criterion Barrels 18in AR-15 Hybrid Carbine Length Gas System Barrel Stainless Steel
No ratings yetFits and works with
- Caliber
- 5.56 / .223 · Shop matching ammo
- Bolt
- Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
- Gas system
- Carbine · Handguards
- Muzzle thread
- 1/2x28 · Muzzle devices
- Barrel length
- 18" · Handguards
Specifications
- Manufacturer
- Criterion Barrels
- Platform
- AR-15
- Caliber
- .223 Wylde
- Gas system
- Carbine
- Barrel length
- 18"
- Twist rate
- 1:8
- Thread pattern
- ½ x 28
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| MidwayUSA Best price | $294.49checked Nov 13, 2026 | In stock | Buy at MidwayUSA | |
| AR15Discounts 5% off | $309.99checked Nov 13, 2026 | Check store | Buy at AR15Discounts | |
| Dirty Bird | $309.99checked Nov 13, 2026 | Check store | Buy at Dirty Bird | |
| OpticsPlanet | $313.49Salechecked Nov 13, 2026 | Out of 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: $294.49 at MidwayUSA. Dashed line = out of stock. Tracking since Oct 17, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| AR15Discounts | $309.99 | $309.99 | $309.99 |
| Dirty Bird | $309.99 | $309.99 | $309.99 |
| MidwayUSA | $294.49 | $294.49 | $294.49 |
| OpticsPlanet | $313.49 | $313.49 | $313.49 |
Since Oct 17, 2026.
About this part
The Criterion Barrels 18in AR-15 Hybrid Carbine Length Gas System Barrel Stainless Steel is an 18" 5.56 / .223 barrel from Criterion Barrels with a carbine gas system. It's sold by 4 stores (1 in stock), from $294.49 to $313.49. The lowest in-stock price in the last 30 days was $294.49 at MidwayUSA.
From the manufacturer
Criterion Barrels 18in AR-15 Hybrid Carbine Length Gas System Barrel Stainless Steel. 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-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 What firearm models does the manufacturer say Criterion Barrels AR-15 Hybrid Carbine Length Gas System Barrel is compatible with? The manufacturer says that Criterion Barrels AR-15 Hybrid Carbine Length Gas System Barrel is compatible with AR-15Criterion Barrels 1518S-HY12: 18in AR-15 Hybrid Carbine Length Gas System Barrel Stainless Steel
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