PRO2A 16" 45 ACP 1/16 Pistol Caliber Melonite M-LOK Upper with Flash Can
Product Overview
The PRO2A 16" 45 ACP Pistol Caliber Carbine Barreled Upper Receiver redefines large-bore pistol caliber performance in a full-length configuration. Purpose-built for dedicated blowback operations, this upper features a premium liquid-nitrocarburized heavy barrel paired with an integrated muzzle-mounted slimline linear flash can. Tucked beneath an extended free-float handguard, the flash can pushes concussive blast and audio signature straight downrange. Engineered as a drop-in replacement upper, it is fully compatible with standard blowback configurations to step up your rifle-length PCC architecture.
Key Features
- Ultra-Compact Profile: 16-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 hard-hitting .45 ACP cartridge, delivering peak performance and velocity consistency across all grain varieties.
- 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 | 45 ACP (Pistol Caliber Carbine) |
|---|---|
| Barrel Length / Steel | 16 Inches / 4150 Chrome Moly Vanadium (CMV) Steel |
| Barrel Finish & Profile | QPQ Melonite / Black Nitride (Internal & External) — Medium Straight Profile |
| Twist Rate / Feed Ramps | 1:16 Twist / Optimized Pistol Caliber Blowback Feed Architecture |
| Gas System Mechanics | Blowback Operating System (No Gas Block/Tube Required) |
| Upper Receiver Housing | Billet Aluminum, Mil-Spec Profile, Type III Hardcoat Anodized (Ejection Port Tailored for Pistol Calibers) |
| Handguard System | 17 Inch Extended Ultra-Lightweight Free-Float Aluminum M-LOK Rail System (Tucked Muzzle Look) |
| Muzzle Configuration | Premium Slimline Linear Flash Can / 5/8-24 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?
Running a blowback .45 ACP system down a full 16-inch barrel yields impressive accuracy and maximizes cartridge velocity parameters. By pairing a premium QPQ-treated barrel with a linear flash can nested inside an extended free-float handguard, Pro2A Tactical achieves a continuous, tactical aesthetic that completely isolates side muzzle pop. It provides builders with a flawless, dependable foundation to finalize a smooth-cycling, heavy-hitting pistol caliber carbine build.
