PRO2A 20" 22 ARC 1/7 Rifle Length Melonite M-LOK AR-15 Upper

Product Description

Unlock extreme high-velocity thresholds, ultra-flat trajectories, and match-grade precision out of a standard semi-automatic small-frame platform. The PRO2A 20" 22 ARC Rifle Length Melonite M-LOK Upper Assembly is expertly engineered to fully exploit the hyper-velocity attributes and high ballistic coefficients of Hornady's 22 Advanced Rifle Cartridge (ARC). Configured on a precision forged 7075-T6 aluminum receiver with standard right-side ejection configuration tolerances, this complete upper receiver houses a premium 20-inch 4150 CMV barrel. The aggressive 1:7 twist rate provides immaculate rotational stabilization for long, heavy, low-drag 22-caliber projectiles favored in long-range precision disciplines. Operating on a tuned rifle-length gas system to ensure highly regulated gas pressures, optimal dwell times, and soft, uniform mechanical tracking, this turnkey system slides seamlessly onto your standard AR-15 lower receiver setup to complete a premier varmint tracking or PRS build.

Key Features

• Elongated 20-Inch Ballistic Mastery: Maximizes complete powder burn efficiency for the 22 ARC cartridge, yielding an absolute velocity premium over shorter barrels to flatten far-reaching trajectories.
• Aggressive 1:7 Fast Twist Performance: Engineered explicitly to flawlessly stabilize high-BC heavy match ammunition under long-range crosswind conditions.
• Regulated Rifle-Length Gas Cycling: Softens internal operating pressure curves and dampens bolt carrier impact speed, providing a linear recoil pulse and prolonging component life.
• 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 Architecture: Premium 15-inch slim profile aluminum rail isolates the barrel from external handling pressure vectors, ensuring continuous point-of-impact accuracy.

Why Choose This Product?

The 22 ARC turns the standard AR-15 platform into a legitimate 1,000-yard competitor, pushing performance thresholds past standard intermediate rounds while using common magazine interfaces. Pro2A Tactical removes precision construction variables by providing a fully matched Melonite core barrel, optional high-pressure type 2 bolt carrier group, and a smooth-cycling rifle gas layout built in perfect harmony. This premium, American-made assembly delivers elite mechanical consistency, flat paths, and superior field reliability right out of the box.