PRO2A 3" 9mm 1/10 Pistol Caliber Melonite M-LOK Upper with Flash Can
Product Overview
The PRO2A 3" 9mm Pistol Caliber Barreled Upper Receiver redefines ultra-discreet, micro-footprint performance. Purpose-built for dedicated blowback operations and compact PDW builds, this upper features a premium liquid-nitrocarburized 3-inch micro barrel paired with an integrated muzzle-mounted slimline linear flash can. Tucked beautifully beneath an extended free-float M-LOK handguard, the flash can pushes concussive blast and audio signature straight downrange away from the operator. Engineered as a drop-in upper replacement, it is fully compatible with standard 9mm blowback setups to step up your sub-compact PCC or pistol architecture.
Key Features
- Ultra-Compact Profile: 3-inch heavy target barrel configuration delivers massive close-range kinetic energy transfer from a highly maneuverable, lightweight footprint.
- Pistol Caliber Optimization: Tuned explicitly for the ubiquitous 9x19mm cartridge, delivering excellent spin stabilization and reliable cycling performance with a versatile 1:10 twist rate.
- 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 an extended free-floating M-LOK handguard for rigid optics and accessory mounting stability.
Technical Specifications
| Caliber / Chambering | 9mm Luger (9x19mm / Pistol Caliber Carbine) |
|---|---|
| Barrel Length / Steel | 3 Inches / 4150 Chrome Moly Vanadium (CMV) Steel |
| Barrel Finish & Profile | QPQ Melonite / Black Nitride (Internal & External) — Medium Profile |
| Twist Rate / Feed Ramps | 1:10 Twist / Optimized Integrated 9mm Pistol Caliber Blowback Feed Cone Geometry |
| Gas System Mechanics | Direct Blowback Operating System (No Gas Block/Tube Required) |
| Upper Receiver Housing | 7075-T6 Forged Aluminum, Mil-Spec Profile, Type III Hardcoat Anodized (Ejection Port Tailored for Slick/Pistol Caliber Clearance) |
| Handguard System | 4 Inch Ultra-Lightweight Free-Float Aluminum M-LOK Rail System (Tucked Muzzle Look) |
| Muzzle Configuration | Premium Slimline Linear Flash Can / 1/2x28 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?
Building a true micro-PDW bag gun configuration usually sacrifices forward hand workspace or clean rail geometry. Pro2A Tactical solves this explicitly by nesting a premium 3-inch QPQ barrel and linear flash can entirely inside an extended free-float M-LOK rail workspace. This guarantees a highly ergonomic grip, conceals muzzle pushback, and creates a clean, continuous look that drives concussive pop downrange, offering builders a rock-solid, ultra-concealable 9mm core upper.
