PRO2A 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. The PRO2A 8.5" 7.62x39 Pistol Length Melonite M-LOK Upper Assembly brings intermediate rifle power directly to sub-compact AR-15 builds without the structural cycling headaches commonly associated with the caliber. Constructed around a premium forged 7075-T6 aluminum receiver with strict right-side ejection metrics, this complete assembly utilizes an 8.5-inch 4150 CMV medium profile barrel. The 1:10 twist rate provides pinpoint rotational stability for common 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 your standard AR-15 lower receiver setup.

Key Features

• Devastating 8.5-Inch Big-Bore Firepower: Delivers massive intermediate rifle-caliber kinetic signatures from a highly maneuverable layout, serving as a premier personal defense weapon configuration.
• 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 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. Pro2A Tactical strips away these custom configuration variables entirely. By matching a precision-drilled pistol gas port core with a robust Melonite treatment, this American-made complete upper receiver yields absolute field reliability and heavy downrange energy.