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7.5 inch 300 BLK NR Side Charging Upper

PRO2A 7.5" 300 Blackout 1/7 or 1/5 Pistol Length NR Side Charging Melonite M-LOK AR-15 Upper

8.5 inch 300 BLACKOUT NR Side Charging Upper

PRO2A 8.5" 300 Blackout 1/7 Pistol Length NR Side Charging Melonite M-LOK AR-15 Upper

PRO2A 7.5" 300 Blackout 1/7 or 1:5 Pistol Length NR Side Charging Melonite M-LOK AR-15 Upper with Flash Can

Rating:
100 % of 100
Special Price $629.99 $804.99

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.

BARREL: 1:7 or 1:5 Twist Rate. Special 1:5 Twist Rate is designed to stabilize heavier grain bullets.

Availability:
In stock
SKU
P2ANR300BLKAXC95PIS75CAN-TK
PRO2A 7.5" 300 Blackout Pistol Length NR Side Charging Melonite M-LOK Upper with Flash Can | Pro2A Tactical

PRO2A 7.5" 300 Blackout Pistol Length NR Side Charging Melonite M-LOK AR-15 Upper with Flash Can

Premium Compact PDW Host with Linear Blast Direction

Dominate your close-quarters or suppressed personal defense weapon build with premium left-side manual acoustics and superior ergonomics. The PRO2A 7.5" 300 Blackout Pistol Length Non-Reciprocating (NR) Side Charging Upper Assembly with Flash Can updates traditional frame mechanics by replacing the standard rear dual-pull tab with an integrated side-charging lever. The cocking handle stays fully stationary during live fire, eliminating moving external parts near your optic spacing or support grip. Equipped with a pre-installed slimline tactical flash can, it forces severe muzzle concussion and noise straight forward away from the operator. Built around a precision 7.5-inch 4150 CMV barrel available with a versatile 1:7 twist or a lightning-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.

Key Features

  • Stationary Side-Charging Handle: The premium non-reciprocating left-side manual interface operates independently from the bolt carrier cycle. This allows for fluid charging and manual clearing while maintaining a tight cheek weld, and seals off the rear of the upper to completely block blown gas from escaping back into your face.
  • Dynamic Twist Choices (1:7 vs 1:5): Choose the classic 1:7 button-rifling for balanced performance across supersonic and heavy sub-sonic ammo, or upgrade to the ultra-aggressive 1:5 fast twist rate to deliver rapid rotational torque, completely stabilizing heavy sub-sonic rounds out of an ultra-short barrel profile.
  • Custom Slimline Flash Can: Pre-installed on the muzzle to handle the sharp acoustic footprint typical of a short 7.5" barrel configuration. It acts as a linear director, projecting noise, concussive pressure, and flash straight toward the target to enhance shooting lane comfort.
  • Melonite/Nitride Barrel Protection: The heavy-duty 4150 CMV steel barrel is fully Nitride/Melonite treated inside and out. This high-grade hardening process vastly extends barrel life, aids in thermal dissipation, and delivers superb corrosion defense against suppressed shooting carbon buildup.
  • Slim Profile Free-Float M-LOK Rail: Built from durable 6061-T6 aluminum, the free-float handguard completely isolates barrel stress to preserve maximum mechanical accuracy while offering extensive M-LOK attachment slots and a top Picatinny rail structure.

Technical Specifications

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 7.5 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 9.5 Inch Slim Profile Competition Top Free-Float M-LOK Rail, Extended Profile Partially Tucked Muzzle, Machined from 6061-T6 Aluminum
Manufacturing Origin 100% Made in the USA with Pro2A Tactical Lifetime Factory Warranty

Who Chooses This Upper Receiver?

Tactical Indoor & Close-Quarters Shooters

Operators training inside confined environments select this flash-can-equipped upper. It channels the aggressive acoustic concussion of the 7.5" barrel completely forward and away from the shooter and adjacent lane operators, eliminating side blast feedback.

Oversized Optics & Thermal Night Hunters

Hog and predator hunters running bulky low-power variable optics (LPVOs), nocturnal digital arrays, or wide thermal sights prefer side chargers. The left-mounted handle leaves massive clearance space below the scope base, preventing scraped knuckles against large optical mounts.

Compact Truck Gun & PDW Builders

Custom builders looking to construct a hard-hitting, compact home defense or backpack weapon choose this upper. Selecting the fast 1:5 twist ensures complete bullet stabilization in ultra-short configurations, delivering heavy .30-caliber energy downrange out of a lightweight build.

More Information
SKU P2ANR300BLKAXC95PIS75CAN-TK
Barrel Length 7.5 inch
Rifle Caliber 300 Blackout
Manufacturer Pro2A Tactical
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