Green Mountain .223 Wylde AR-15 Barrel 18" M4 416SS Black Pass. - GM-M49

Engineered for precision and durability, the Green Mountain .223 Wylde AR-15 Barrel delivers reliable performance for serious shooters building or upgrading their rifle. This 18-inch M4-profile barrel combines a versatile .223 Wylde chamber with a fast 1:8 twist rate, allowing you to accurately engage targets with a wide range of bullet weights while maintaining excellent velocity and stability.

Key Features and Benefits

• Precision Chambering: The .223 Wylde chamber offers the best of both .223 Remington and 5.56 NATO worlds, providing tight tolerances for superior accuracy without compromising reliability or safety.
• Optimized Twist Rate: A 1:8 twist stabilizes heavier projectiles up to 77 grains, making it ideal for long-range plinking, competition, or varmint hunting.
• Durable Construction: Machined from 416 stainless steel with a black passivated finish, this barrel resists corrosion and maintains a low-profile matte appearance that reduces glare during field use.
• M4 Profile Design: The government-style M4 contour balances weight and rigidity, providing a solid platform for optics and accessories while keeping overall rifle weight manageable.
• Rifle-Length Gas System: Paired with a 0.75-inch gas block journal, the rifle-length gas system ensures smooth, consistent cycling and reduced recoil for faster follow-up shots.

Technical Specifications

• Barrel Length: 18 inches
• Material: 416 stainless steel
• Finish: Black passivated
• Profile: M4
• Gas System: Rifle length
• Gas Block Journal: 0.75 inches
• Twist Rate: 1:8
• Muzzle Threads: 1/2×28
• Platform: AR-15
• Weight: 34 ounces

Why Choose This Barrel?

Whether you’re assembling a dedicated precision build or enhancing an existing AR-15, this barrel addresses common pain points like inconsistent accuracy, excessive recoil, and premature wear. Its button-rifled, air-gauged, and stress-relieved construction promotes tight groupings and long service life. The nickel boron-coated M4 extension further enhances feeding reliability under demanding conditions.

Upgrade your rifle with a barrel trusted by builders who demand quality without compromise. Experience the difference a well-crafted component makes in every range session.