PRO2A 10.5" 7.62x39 1/10 Carbine Length Melonite M-LOK AR-15 Upper
Product Overview
The PRO2A 10.5" 7.62x39 Carbine Length Barreled Upper Receiver brings heavy-hitting x39 firepower into a perfectly balanced, compact carbine configuration. Engineered to maximize cycle smoothness and part longevity, this drop-in replacement upper utilizes a carbine-length direct impingement gas system tailored for robust operation with standard 7.62x39 ammunition pressures. Built with top-tier components, it features a heavy-profile Melonite-treated barrel with engineered feed ramp geometry to deliver exceptional extraction and feed reliability.
Key Features
- Ultra-Compact Profile: 10.5-inch heavy target barrel configuration delivers massive close-range kinetic energy transfer from a highly maneuverable, lightweight footprint.
- Hard-Hitting Ballistics: Specifically optimized for the 7.62x39mm cartridge, bringing a high-energy platform into an agile, short-barreled AR configuration.
- QPQ Melonite Extreme Armor: Barrel bore, chamber, and exterior are fully liquid nitrocarburized to exceed mil-spec chrome lining in surface hardness, heat dissipation, and corrosion resistance.
- Slim Profile M-LOK Workspace: Features a continuous top Picatinny rail interface seamlessly blended into a 9-inch free-floating M-LOK handguard for rigid optics and accessory mounting stability.
Technical Specifications
| Caliber / Chambering | 7.62x39mm |
|---|---|
| Barrel Length / Steel | 10.5 Inches / 4150 Chrome Moly Vanadium (CMV) Steel |
| Barrel Finish & Profile | QPQ Melonite / Black Nitride (Internal & External) — MediumProfile |
| Twist Rate / Feed Ramps | 1:10 Twist / M4 Feed Ramps Engineered for Reliable Geometry and Tapered Casings |
| Gas System Mechanics | Carbine Length Direct Impingement with a 0.750" Low-Profile Steel Gas Block |
| Upper Receiver Housing | 7075-T6 Forged Aluminum, Mil-Spec M4 Profile, Type III Hardcoat Anodized |
| Handguard System | 9-Inch Ultra-Lightweight Free-Float Aluminum M-LOK Rail System |
| Muzzle Configuration | Standard A2 Flash Hider / 5/8x24 TPI Thread Pitch |
| Manufacturing Origin | 100% Designed, Machined, and Assembled in the United States |
| Warranty Protection | Backed by Pro2A Tactical's Structural Lifetime Warranty |
Why Choose This Product?
Choosing a carbine-length gas system on a 10.5-inch 7.62x39 build provides a smoother impulse curve compared to traditional shorter gas configurations. By marrying this cycling advantage with a premium heavy QPQ barrel and an open free-float handguard workspace, Pro2A Tactical has developed an ultra-reliable, hard-hitting tactical foundation that avoids extraction issues and stands up to hard-use firing regimens.
