Product Overview

The PRO2A 10.5" 300 Blackout 1/7 or 1/5 Pistol Length NR Side Charging Melonite AR-15 Upper Kit provides an all-inclusive, premium workspace solution engineered to transition your stripped lower receiver into a high-performance personal defense platform. Built around a precision **Non-Reciprocating (NR) left-side charging receiver**, this kit isolates component cycling from the manual handle to maintain a rock-solid sight picture. Completely configured with a matching full-auto profile bolt carrier group, dedicated side-charging assembly, complete lower parts matrix, and a robust polymer blade system, this master package removes component matching guesswork entirely.

Key Features

• All-In-One Master Kit Architecture: Fulfills your entire firearm construction project by fully integrating the internal tracking components, fire control group, and stabilizing furniture directly into one premium order.
• Non-Reciprocating Side Manipulation: Left-side charging lever remains completely fixed forward when firing, mitigating gas-to-face blowback exposure and maximizing operational ergonomics clear of optics footprints.
• High-Twist Rotational Options: Select a highly flexible 1:7 twist rate for standard multi-grain supersonic cartridges, or deploy the hyper-fast 1:5 twist profile optimized to flawlessly stabilize heavy subsonic projectiles in shorter gas loop setups.
• Concussive Forward Redirection: The sleek linear blast flash can forces hot expanding muzzle gases and sharp acoustics downstream, protecting the operator when maneuvering inside structural boundaries.
• Liquid QPQ Melonite Preservation: Full-immersion nitriding hardens the 4150 CMV barrel structure to safely resist severe gas throat friction heat and extreme elemental humidity.

Technical Specifications

Why Choose This Product

Choosing this complete side-charging upper kit completely modernizes your construction pipeline. Transitioning tracking manipulation to the left side allows you to clear malfunctions or cycle the action while maintaining total cheek weld and pointing stability. Packed with premium treated components from the full-auto profile bolt carrier down to the polished fire control linkages, it delivers absolute mechanical reliability. Proudly manufactured in the USA from heavy-duty raw metals, this setup ensures an uncompromising tactical response straight out of the box.