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Achieve the absolute minimal platform footprint without compromising on manual ergonomics or bullet stabilization. The PRO2A 5" 5.56 NATO Micro Length Non-Reciprocating (NR) Side Charging Upper Assembly with Flash Can updates traditional AR-15 operations by moving manual manipulation to an intuitive left-side cocking lever. The charging handle remains completely stationary while firing, providing a seamless operating zone free from moving external components near your optic workspace or support hand. Built around an ultra-short 5-inch barrel configuration, this micro upper utilizes an aggressive 1:5 fast twist rate to solve the key projectile stabilization issues found on standard short-barrel 5.56 setups. Pre-equipped with a slimline linear flash can, it forces severe micro-barrel gas concussion and muzzle noise straight forward downrange away from the operator. Drops natively onto any standard Mil-Spec AR-15 lower receiver configured as a legal pistol or registered SBR. Proudly 100% designed, machined, and precision-assembled in the USA.
| Upper Receiver | Gibbz Arms G4 Non Reciprocating Side Charging Billet Aluminum Receiver with Gen 2 Handle, M4 Feed Ramps, Type III Hardcoat Anodized Black |
|---|---|
| Barrel Length & Steel | 5 Inch Profile, 4150 Chrome Moly Vanadium Steel |
| Caliber | 5.56 NATO (Compatible with .223 Remington ammunition) |
| Twist Rate | 1:5 Twist (Optimized for short-barrel projectile stabilization) |
| Gas Operating Block | Micro-Length System, Low-Profile Gas Block Machined from 4140 Steel, Stainless Steel Gas Tube |
| Muzzle Device | Standard 1/2-28 Thread Pitch, Pre-Installed Slimline Linear Flash Can Redirector |
| Handguard | 6.5 Inch Slim Profile Competition Top Free-Float M-LOK Handguard, Extended Profile Partially Tucking the Muzzle Device, Machined from 6061-T6 Aluminum |
| Manufacturing Origin | 100% Made in the USA with Pro2A Tactical Lifetime Factory Warranty |
Operators looking to build an ultra-compact Personal Defense Weapon (PDW) choose this setup to achieve maximum portability in vehicles, discrete storage packs, or tight quarters while maintaining full multi-shot intermediate rifle fire capabilities.
Operators training inside confined environments or indoor lanes select this flash-can-equipped upper. It channels the aggressive acoustic concussion of the short 5" barrel completely forward and away from the shooter and adjacent lane partners, minimizing uncomfortably loud side-blast feedback.
Marksmen running larger reflex sights, low-power variable optics (LPVOs), or thermal frames prefer side-charging platforms. The left-side handle clears the wide undersides of scope mounts, protecting hands from scrape damage during rapid charging manipulation.
| SKU | P2ANR556AXC65MIC5CAN-HT |
|---|---|
| Barrel Length | 5 inch |
| Rifle Caliber | 5.56 NATO |
| Manufacturer | Pro2A Tactical |