PRO2A LEFT HAND 8.5" 7.62x39 1/10 Pistol Length Melonite M-LOK AR-15 Upper

Product Description

Pack the severe close-quarters impact and deep terminal fragmentation of the standard 7.62x39mm cartridge into an exceptionally compact, agile platform while maintaining absolute ergonomic safety. The PRO2A LEFT HAND 8.5" 7.62x39 Pistol Length Melonite M-LOK Upper Assembly delivers uncompromised intermediate rifle power tailored natively from the ground up for southpaw operators. Utilizing a mirrored left-ejecting receiver profile and a matching left-hand M16 bolt carrier group, this system completely removes cross-body brass throwing and facial carbon gas blowback common when lefties run traditional right-handed short platforms. Built around a premium forged 7075-T6 aluminum receiver with a single large feed ramp, this complete upper receiver houses an agile 8.5-inch 4150 CMV medium profile barrel. The 1:10 twist rate provides pinpoint rotational stabilization for standard 122gr to 124gr steel-cased or brass factory loads out of an abbreviated bore profile. Fine-tuned with a reliable direct impingement pistol-length gas layout and a low-profile gas block to handle cyclic pressure curves safely, Wrapped inside a rigid 7-inch free-float aluminum handguard, this assembly drops seamlessly onto any standard AR-15 lower receiver setup.

Key Features

• True Left-Hand Ejection Architecture: Dedicated mirrored port arrangement completely eliminates cross-body brass throwing and concussive facial blowback for southpaw operators.
• Tuned Pistol-Length Gas Curve: Optimizes internal gas expansion velocity and dwell times to deliver flat, uniform mechanical cycling profiles with a wide variety of factory intermediate ammunition.
• Liquid Bath Nitride Protection: Full interior and exterior QPQ Melonite barrel coating provides maximum resistance to heat friction, extreme weather elements, and throat erosion.
• Resilient Free-Float M-LOK Handguard: Premium 7-inch slim profile aluminum rail isolates the barrel from external handling pressure vectors, ensuring continuous point-of-impact accuracy.

Why Choose This Product?

Running 7.62x39mm out of a short AR-15 barrel traditionally introduces ignition failures due to hard primers and cycling hesitation from improper gas hole mapping—and running a short right-handed setup puts unmanaged gas blowback directly across a left-handed operator's face. Pro2A Tactical resolves these structural hurdles completely. By matching a true mirrored left-ejection action with a precision-drilled pistol gas port core, and a robust Melonite treatment, this American-made complete upper receiver yields safe-to-face field reliability and heavy downrange energy right out of the box.