Product Description

Upgrade your platform with the premium PRO2A 12.5" 300 Blackout Pistol-Length Non-Reciprocating (NR) Side Charging Assembled Upper Receiver with Flash Can. This setup is built exclusively as an standalone barreled upper assembly, engineered to handle heavy subsonic grains and supersonic cartridges flawlessly. The integrated slimline linear flash can controls muzzle pressures by driving concussive force and expansion gases directly downrange away from the operator. This assembled upper receiver pairs a headspaced 12.5-inch precision barrel with an adaptable 1:8 twist profile and a clean-cycling pistol-length direct impingement gas setup.

Key Features

• Non-Reciprocating Left-Side Charger: Features the premium patent-pending Gibbz Arms G4 billet architecture. The left-side charging handle stays stationary when firing, eliminating interference with optics or thermals.
• Versatile 1:8 Twist Profile: A high-performance 1:8 right-hand twist delivers optimized stabilization metrics across standard supersonic hunting ranges and heavy subsonic configurations.
• Forward-Directed Flash Can: The slimline linear muzzle device tames shorter barrel percussion lines by re-routing high blast pressure down the firing line.
• QPQ Melonite Extreme Armor: The barrel bore, chamber mechanics, and exterior surfaces are completely liquid nitrocarburized to resist erosion and maximize thermal distribution.
• Recessed M-LOK Workspace: Features a full continuous top Picatinny rail interface blended into a 12-inch free-floating handguard that beautifully shrouds the recessed linear muzzle can.

Technical Specifications

Why Choose This Product?

The PRO2A 12.5" 300 Blackout Non-Reciprocating Side Charging Upper Receiver provides an exceptional standalone baseline for custom builds without forcing you to buy duplicate lower parts or generic bolt components you may already own. Traditional rear-charging upper units create unnecessary physical strain when running massive long-range optics or high-profile thermal platforms. Incorporating the specialized Gibbz Arms G4 framework resolves this issue entirely, allowing fast charging actions while keeping your cheek weld locked. Built fully in America with premium tolerances and supported by an unconditional Structural Lifetime Warranty, it offers an outstanding, high-performance solution for shooters looking to personalize their compact configurations.