Product Description

Master your custom build from the ground up with the fully comprehensive PRO2A 22" 6.8 SPC II Rifle Length Melonite M-LOK AR-15 Upper Kit. Far more than a standard barreled receiver half, this all-inclusive rifle layout contains every mechanical internal component, lower control interface, and stock extension sub-assembly needed to turn any stripped AR-15 lower receiver into a fully operational precision hunting system. Anchored by an extended 22-inch heavy barrel and smooth rifle gas configuration, this kit provides a headspaced, turnkey system engineered for seamless mechanical interaction.

Key Features

• All-Inclusive Master Kit Bundle: Bundles the complete factory-assembled upper receiver half, matched bolt group, charging handle, full lower control parts setup, and rear compression buffer extension assembly in a single package.
• Maximized 22" Ballistic Profile: Extends the physical acceleration column to extract maximum muzzle velocity, superior downrange kinetic energy, and flat trajectories out of the hard-hitting 6.8 SPC II caliber.
• Refined Rifle-Length Gas Dynamics: Softens the overall recoil impulse and dramatically slows component wear compared to over-gassed shorter configurations by optimizing internal pressure dwell time.
• QPQ Melonite Hardened Protection: Inside barrel bore, chamber throat, and exterior walls are fully liquid nitrocarburized to maximize surface hardness, improve thermal dissipation, and resist extreme environmental degradation.
• Complete Stock and Control Systems: Outfitted with an expandable 6-position receiver extension assembly and a crisp, standard single-stage lower parts kit for flawless mechanical ignition.

Technical Specifications

Why Choose This Product?

The PRO2A 22" 6.8 SPC II Rifle Length complete upper kit provides the perfect blueprint for building an optimized medium-game hunting tool without dealing with the frustration of sourcing system components piecemeal. Sourcing a 6.8 SPC build normally requires matching individual specialized parts, such as proprietary bolt heads, rare gas tube measurements, lower spring weights, and specific receiver components. This master kit provides all of those matching systems out of the box, matching the full upper engine with the corresponding lower mechanical parts. It lets you skip the guesswork and proceed straight to assembly on any standard stripped lower receiver while keeping your component costs efficient. Made in America to exact tolerances and protected by an unconditional Structural Lifetime Warranty, it stands as a premium choice for custom rifle builders.