Green Mountain .223 Wylde AR-15 Barrel 18" M4 416SS Passivated - GM-M28

Upgrade your AR-15 build with the Green Mountain .223 Wylde AR-15 Barrel, an 18-inch M4-profile barrel precision-machined from 416 stainless steel and finished with passivation for superior corrosion resistance and a professional matte appearance. This barrel delivers the perfect balance of velocity, accuracy, and handling for tactical, competition, or recreational shooting.

Key Features

• .223 Wylde Chamber: Optimizes performance with both .223 Remington and 5.56 NATO ammunition for enhanced versatility and accuracy across a wide range of loads.
• 1:7 Twist Rate: Stabilizes heavier bullets up to 77 grains and beyond, improving long-range precision and wind resistance.
• Rifle-Length Gas System: Ensures smooth, reliable cycling with reduced recoil for comfortable extended shooting sessions.
• M4 Profile with 0.75″ Gas Block Journal: Provides a classic military contour while accommodating standard low-profile gas blocks for a streamlined upper receiver fit.
• 1/2×28 Muzzle Threads: Compatible with a wide selection of muzzle devices, flash hiders, and suppressors.

Specifications

• Barrel Length: 18 inches
• Material: 416 Stainless Steel, passivated finish
• Profile: M4
• Platform: AR-15
• Gas System: Rifle length
• Twist Rate: 1:7
• Muzzle Thread: 1/2×28
• Weight: 35.4 oz

Benefits for Shooters

Built for reliability in demanding conditions, this barrel’s stainless construction resists rust while maintaining tight tolerances for consistent groupings. The passivated finish enhances durability without adding unnecessary weight, making it ideal for builds where accuracy and longevity matter most. Whether you’re zeroing in on targets or outfitting a duty-ready rifle, this component solves common pain points like inconsistent feeding with mixed ammo and excessive wear from frequent use.

Green Mountain’s reputation for quality manufacturing ensures each barrel meets exacting standards, giving builders confidence in their custom AR-15 project.

Why Choose This Product

Invest in a barrel that prioritizes performance without compromise. Its thoughtful design addresses the needs of serious shooters seeking a dependable, accurate upgrade that integrates seamlessly into existing AR-15 platforms.