Product Description

The PRO2A 14.5" 5.56 NATO Mid Length Non-Reciprocating (NR) Side Charging Melonite M-LOK Upper Receiver Assembly combines high-end ergonomic design with streamlined legal compliance. Engineered around a precision-machined billet aluminum receiver, this system relocates the charging interface to the left side with a handle that remains stationary during weapon cycling. To achieve a compact carbine profile without NFA short-barreled rifle registration, an extended muzzle device is professionally pinned and welded to permanently bring the overall barrel length past the standard legal 16-inch civilian threshold.

Key Features

• Non-Reciprocating Side Charging Handle: Left-side ergonomic lever provides superior manual operation and mechanical leverage, staying forward and completely static while firing to ensure clear physical space under optics.
• Non-NFA Legal Compliance: An extended muzzle device is permanently attached using a permanent pin-and-weld technique, allowing for handy short-carbine ergonomics while safely satisfying legal length parameters.
• Smoother Mid-Length Gas Profile: Implements an optimized gas-port distance to naturally decrease carrier slide speeds, significantly smoothing out perceived recoil and dropping gas blowback.
• Premium Melonite Structural Defense: Heavy-duty 4150 CMV steel is thoroughly liquid nitrided to secure supreme environmental corrosion resistance and a longer bore throat life.

Technical Specifications

Why Choose This Product?

This premium 14.5-inch pinned and welded assembly modernizes traditional AR-15 operations into an ultra-ergonomic, highly maneuverable defensive tool. By deleting the rear charging handle, operators can smoothly charge the weapon or clear malfunctions with a left-side stroke without ever losing their sight picture or cheek weld on large optics. Mated to a soft-cycling mid-length gas system configuration and a permanent legal-length muzzle solution, it offers home builders and tactical shooters an exceptionally rugged, non-NFA restricted upper receiver built for continuous hard field use.