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OPTION DETAILS
GAS BLOCK: Standard or Adjustable. Adjustable is a great option if you are using a suppressor or just want to fine tune your system.
Bolt Carrier Group: BCG is Optional. Select Nitride or Nickel Boron if you need a BCG to complete Upper . All our BCGs are M16 Profile, Properly Staked Gas Key, MP Tested, 8620 Carrier, 9310 Bolt. Nitride is a surface hardening process that creates a tough and slick surface. Nickel Boron provides the slickest surface which reduces friction and where dirt does not easily adhere to.
Optimize your defensive build with increased handguard real estate, enhanced velocities, and an intuitive side-charging layout. The PRO2A 10.5" 300 Blackout Pistol Length Non-Reciprocating (NR) Side Charging Upper Assembly with Flash Can completely redesigns traditional frame ergonomics by swapping out the rear dual-pull tab for a left-side charging handle. The non-reciprocating handle stays entirely stationary while firing, providing a seamless operating zone free from moving components near your optics. Pre-equipped with a slimline tactical flash can, it forces intense muzzle concussion and noise straight forward downrange away from the operator. Built around a precision 10.5-inch barrel configuration available with a versatile 1:7 twist or a fast 1:5 twist for heavy sub-sonic stabilization, this premium upper drops natively onto any Mil-Spec lower receiver. 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 | 10.5 Inch Medium Profile, 4150 Chrome Moly Vanadium Steel |
| Caliber | 300 AAC Blackout (300 BLK) |
| Twist Rate | 1:7 Twist (Standard) OR 1:5 Fast Twist (Highly recommended for sub-sonic stabilization) |
| Gas Operating Block | Pistol-Length System, Low-Profile Gas Block Machined from 4140 Steel, Stainless Steel Gas Tube |
| Muzzle Device | Standard 300 BLK Thread Pitch (5/8-24 Threads), Pre-Installed Slimline Linear Flash Can |
| Handguard | 12 inch Slim Profile 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 training inside confined environments or indoor lanes select this flash-can-equipped upper. It channels the sharp muzzle concussion of the 10.5" barrel completely forward and away from the shooter and adjacent lane partners, minimizing side-blast concussion feedback.
Hog and predator hunters running bulky low-power variable optics (LPVOs), complex night vision setups, or wide thermal sights prefer side-charging platforms. The left-mounted handle leaves massive clearance space below the scope base, preventing scraped knuckles against large optical mounts.
Custom builders looking to construct a reliable defense tool choose the 10.5-inch setup. It leaves extra rail room for tactical lights, lasers, and vertical grips compared to standard micro platforms, ensuring confident weapon handling and control under stress.
| SKU | P2ANR300BLKGFS12PIS105CAN-TK |
|---|---|
| Barrel Length | 10.5 inch |
| Rifle Caliber | 300 Blackout |
| Manufacturer | Pro2A Tactical |