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10.5 inch AR-15 LEFT HANDED AR-15 Non Reciprocating Side Charging 300 Blackout Pistol Melonite Upper w/Can

PRO2A LEFT HAND 10.5" 300 Blackout 1/8 or 1/5 Pistol Length NR Side Charging Melonite M-LOK AR-15 Upper with Flash Can

12.5 inch LEFT HANDED AR-15 NR Side Charging 300 Blackout M-LOK Melonite Upper

PRO2A LEFT HAND 12.5" 300 Blackout 1/8 Pistol Length NR Side Charging Melonite M-LOK AR-15 Upper

PRO2A LEFT HAND 12.5" 300 Blackout 1/8 Pistol Length NR Side Charging Melonite M-LOK AR-15 Upper with Flash Can

Special Price $659.99 $864.99
Availability:
In stock
SKU
P2ALNR300BLKGFS15PIS125CAN-TK
PRO2A Left Hand 12.5" 300 Blackout Pistol Length NR Side Charging Upper with Flash Can | Pro2A Tactical

PRO2A LEFT HAND 12.5" 300 Blackout Pistol Length NR Side Charging Melonite M-LOK AR-15 Upper with Flash Can

Optimal 300 BLK Ballistics with Premium Left-Hand Mechanics and Directed Blast Control

Unlock the perfect balance of velocity, compact geometry, and mirroring southpaw ergonomics. The PRO2A Left Hand 12.5" 300 Blackout Pistol Length Non-Reciprocating (NR) Side Charging Upper Assembly with Flash Can completely modernizes manual operation by moving cycling to a heavy-duty, left-side cocking lever. Built specifically for left-handed shooters, the mirrored left-ejection port layout completely shields your line of sight from fly brass and escaping gases, while the non-reciprocating handle stays stationary to prevent optical blockages. Built around a versatile 12.5-inch barrel configuration, it secures full powder burns for supersonic rounds while remaining highly efficient with heavy sub-sonic ammo. Pre-equipped with a slimline tactical flash can muzzle device, it forces intense gas concussion and flash straight 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.

Key Features

  • Mirrored Left-Hand Port & Side Charging Layout: Specifically designed to safely redirect spent casings and concentrated powder blowback out of the left side. The stationary side lever lets you charge the system easily from prone or benched layouts, maintaining constant target acquisition.
  • Integrated Slimline Flash Can: Pre-installed on the muzzle to tame the sharp acoustic blast typical of short-barrel configurations. It acts as a linear director, projecting noise, gas, and flash away from the shooter to maximize training lane and tight-quarters comfort.
  • Full-Combustion 12.5-Inch Barrel Profile: Bridges the gap between micro footprints and full-size rifles, offering extra dwell time, increased rail estate, and higher muzzle velocity parameters for both hunting and defensive ammunition.
  • Melonite/Nitride Barrel Protection: The heavy-duty 4150 CMV steel barrel is fully Nitride/Melonite treated inside and out. This premium chemical hardening vastly extends barrel life against suppressed shooting carbon buildup, aids thermal dissipation, and counters harsh field element corrosion.
  • Slim Profile Free-Float M-LOK Rail: Built from durable 6061-T6 aluminum, the free-float handguard completely isolates barrel vibrations to preserve uniform mechanical accuracy while offering extensive M-LOK accessory attachment space and a continuous top Picatinny rail.

Technical Specifications

Receiver Gibbz Arms G4 LEFT HANDED Non Reciprocating Side Charging Billet Aluminum Receiver with Gen 2 Handle, M4 Feed Ramps, Type III Hardcoat Anodized Black
Barrel Length & Steel 12.5 Inch Medium Profile, 4150 Chrome Moly Vanadium Steel, Melonited Treated
Caliber 300 AAC Blackout (300 BLK)
Twist Rate 1:8 Twist (All-around stabilization for supersonic and heavy sub-sonic ammo)
Gas Operating Block Pistol-Length System, Low-Profile Gas Block Machined from 4140 Steel, Stainless Steel Gas Tube
Muzzle Device Config Standard 300 BLK Thread Pitch (5/8-24 Threads), Pre-Installed Slimline Linear Flash Can
Handguard 15 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

Who Chooses This Upper Receiver?

Southpaw Home Defense & PDW Builders

Southpaw marksmen building an agile, highly adaptable defensive weapon choose this setup. The side-charging billet design seals the traditional rear handle opening, completely blocking blowback gas and powder flecks from leaking into your face when running suppressed or high-concussion configurations.

Tactical Indoor & Close-Quarters Shooters

Operators training inside confined environments or indoor lanes select this flash-can-equipped upper. It channels the aggressive acoustic concussion of the 12.5" barrel completely forward and away from adjacent lane operators, minimizing uncomfortably loud side-blast feedback.

Oversized Optics & Night Hunters

More Information
SKU P2ALNR300BLKGFS15PIS125CAN-TK
Rifle Caliber 300 Blackout
Manufacturer Pro2A Tactical
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