Product Description

The PRO2A Left Hand 13.7" 5.56 NATO Mid Length Non-Reciprocating (NR) Side Charging Melonite M-LOK Upper Receiver Assembly with Flash Can brings advanced manual ergonomics and streamlined legal compliance to left-handed operators. Built on a precision-machined left-handed billet aluminum receiver, this configuration routes hot gases and spent casings clear of southpaw shooters while replacing the traditional rear latch with a smooth side-charging handle that stays static during operation. To meet civilian legal length guidelines without federal NFA short-barreled rifle registration, an extended blast-forwarding linear Flash Can is professionally pinned and welded, permanently extending the 13.7-inch barrel footprint past the legal 16-inch OAL threshold.

Key Features

• True Left-Hand Configuration: Mirrored left-ejection layout routes spent shells and high-pressure blowback completely clear of left-handed operators' eyes and face.
• Non-Reciprocating Side Charging Architecture: High-leverage Right-side charging handle provides superior manual weapon operation, remaining forward and completely static during firing sequences to ensure clear physical space under optics.
• Non-NFA Legal Compliance: Professional pin-and-weld muzzle attachment permanently links the extended Flash Can to the barrel threads, yielding a legal 16" overall rifle configuration with zero tax stamp hassles.
• Blast-Forwarding Linear Flash Can: Mitigates harsh lateral concussion waves and pushes explosive muzzle flash, powder expansion gases, and sonic reports downrange directly toward targets.
• Smoother Mid-Length Gas Profile: Employs an optimized gas port distance to drop cyclic bolt velocities, lowering mechanical recoil fatigue and minimizing interior fouling 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 13.7-inch left-handed pinned and welded assembly delivers ultimate tactical handling customized for southpaw shooters within a non-restricted rifle envelope. By moving the charging interface to the left side and deleting the rear latch, operators can cycle rounds or clear technical issues with an intuitive off-hand stroke without breaking their cheek weld or sight alignment on large optics. Balanced with a soft-cycling mid-length gas system configuration, an integrated handguard-recessed linear blast device, and permanent non-NFA legal length compliance, it provides left-handed home builders and professionals with a highly compact upper receiver built for total field dominance.