Primary Weapons Systems MK216 Upper 18" .308

Primary Weapons Systems MK216 Upper Receiver

The MK216 represents a thoughtful approach to modern rifle design, offering shooters a complete upper receiver assembly built on proven AR10/SR25 platform specifications.

Key Features

• Caliber: .308 Winchester
• Barrel Length: 18 inches
• Muzzle Device: FRC compensator for recoil management
• Finish: Matte black
• Platform Compatibility: AR10 and SR25 pattern lower receivers

Design and Performance

The 18-inch barrel strikes a practical balance between velocity and handling characteristics, making this upper suitable for both tactical applications and precision work. The FRC compensator helps manage recoil impulse, allowing faster target reacquisition and more controlled shooting sequences.

The matte finish provides a professional appearance while offering practical corrosion resistance for field use. This upper receiver integrates seamlessly with standard AR10 and SR25 lower receivers, making it an excellent choice for builders seeking quality components.

Practical Considerations

This is a complete upper assembly, meaning you'll need a compatible lower receiver to build a functional rifle. The .308 Winchester cartridge delivers substantial power for medium to long-range applications, making this configuration suitable for hunting, sport shooting, and tactical training.