Upgrade your Pistol Caliber Carbine (PCC) configuration with the PRO2A 10.5" 45 ACP Non-Reciprocating Side Charging Upper Receiver Group. This highly optimized system arrives completely assembled, headspaced, and rigorously inspected to mount seamlessly onto your dedicated 45 ACP AR lower receiver setup. Combining a smooth non-reciprocating left-side charging handle with an integrated forward flash can, this premium upper controls concussion while pushing hard-hitting large-caliber payloads with match-grade consistency.
Key Features
- Non-Reciprocating Left-Side Charging: The side handle remains completely stationary as the system cycles, preventing structural disruptions and allowing easy manual clearance behind optics.
- Melonite (QPQ) Hardened Coating: Creates a diamond-hard, low-friction surface inside the bore and chamber to enhance feeding reliability, corrosion resistance, and total operational life.
- Linear Blast-Forward Flash Can: Directs muzzle noise, hot gases, and concussion downrange away from the shooter—an essential modification for tight range corridors and indoor tactical configurations.
- Slimline Modular M-LOK Handguard: Grants generous placement real estate for handstops, forward grips, and lights at the 3, 6, and 9 o'clock index positions without creating excess bulk.
- Hand-Built Craftsmanship Inspections: Meticulously engineered in-house with checking for tight barrel extension fitment, precise feed ramp transitions, and strict headspace uniformity.
Technical Product Specifications
- Caliber / Chamber: .45 ACP (Pistol Caliber Carbine)
- Barrel Length: 10.5 Inches
- Operating System: Blowback (calibrated for standard and heavy-grain 45 ACP self-defense ammunition)
- Barrel Twist Rate: 1/16 Twist (optimized for maximum stability with heavy .45 caliber projectiles)
- Barrel Material & Finish: 4150 Chrome Moly Vanadium treated with an ultra-slick Melonite / Black Nitride QPQ layer
- Upper Receiver : Gibbz Arms G9 Billet Aluminum Non-Reciprocating (NR) Left-Side Charging / Right-Side Ejection, Anodized Black
- Handguard Structure: 12 Inch Slim Free-Float M-LOK Handguard with an integrated top Picatinny rail section
- Muzzle Device: 5/8-24 TPI Slimline Flash Can (redirects sound wave and expanding gases downrange)
- Platform Compatibility: Pairs with AR-45 / dedicated mil-spec .45 ACP lower assemblies or standard AR-15 lowers with mag adapters
- Manufacturing Quality: 100% Proudly Made in the USA from domestic raw materials
Why Choose the Pro2A Tactical 10.5" 45 ACP Upper?
The Ultimate Close-Quarters Defensive Architecture
The heavy, slow-moving profile of the .45 ACP cartridge offers incredible short-range stopping power with reduced risk of structural over-penetration. Blending this caliber with a balanced 10.5-inch barrel structure optimizes bullet acceleration while maintaining an incredibly agile profile that handles efficiently indoors or around tight spaces.
Enhanced Side-Charging Ergonomics
Manipulating a standard rear T-handle on an agile PCC platform can be cumbersome, particularly under stress or when utilizing low-profile optical sights. The non-reciprocating side-charging platform places the control handle right where your support hand naturally rests, creating a faster, highly fluid loading sequence.
Uncompromising USA Build Standards and Lifetime Warranty
Pro2A Tactical sources materials from trusted premium suppliers and hand-builds every single unit in Cumming, Georgia. This complete upper group is protected by a standard lifetime warranty covering manufacturer defects in structural materials or workmanship, guaranteeing true peace of mind with every trigger pull.
