Windham Mpc Upper 556 16" M4 Blk

The Windham MPC Upper 556 16" M4 Black is a purpose-built upper receiver assembly designed for AR-15 platform shooters who demand reliability and field-proven performance. Built with precision engineering, this 16-inch barrel upper delivers the balance of velocity and handling characteristics that make the M4 profile the industry standard for tactical and defensive applications. Whether deployed for duty use, competitive shooting, or training scenarios, this upper receiver combines proven durability with the versatility required across diverse operational contexts.

The 16-inch barrel length provides optimal muzzle velocity for 5.56 NATO/.223 Remington cartridges while maintaining a compact profile suitable for close-quarters engagement and vehicle operations. At 5.63 lbs, the upper contributes reasonable weight to an AR-platform rifle without sacrificing handling speed or inducing fatigue during extended shooting sessions. The M4 profile geometry has become the baseline for modern carbine design, offering shooters a proven form factor with widespread aftermarket support and accessory compatibility. The black finish provides corrosion resistance essential for reliable long-term service in varied environmental conditions.

This upper receiver suits law enforcement patrol carbines, civilian defensive rifle builds, precision sport shooters, and military-style training platforms. The 16-inch configuration represents the practical midpoint between maneuverability and ballistic performance, making it appropriate for shooters seeking a do-it-all upper that doesn't compromise in any single dimension. Users building a complete rifle system or upgrading an existing lower receiver will find the MPC Upper's specifications align with professional-grade expectations for reliability and accuracy under duty-cycle demands.