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12.5 inch AR-15 Non Reciprocating Side Charging 350 LEGEND Melonite Upper

PRO2A 12.5" 350 Legend 1/16 Pistol Length NR Side Charging Melonite M-LOK AR-15 Upper

11.5 inch AR-15 5.56 NATO Carbine M-LOK Keymod Melonite Upper

PRO2A 11.5" 5.56 NATO 1/7 Carbine Length Melonite M-LOK AR-15 Upper

PRO2A 12.5" 350 Legend 1/16 Pistol Length NR Side Charging Melonite M-LOK AR-15 Upper with Flash Can

Rating:
93 % of 100
Special Price $659.99 $789.99
Availability:
In stock
SKU
P2ANR350LGFS15PIS125CAN-TK
PRO2A 12.5" 350 Legend NR Side Charging Melonite Upper with Flash Can

PRO2A 12.5" 350 Legend 1/16 Pistol Length NR Side Charging Melonite M-LOK AR-15 Upper with Flash Can

Product Overview

The PRO2A 12.5" 350 Legend 1/16 Pistol Length NR Side Charging Melonite M-LOK AR-15 Upper with Flash Can delivers devastating straight-walled ballistic energy combined with exceptional structural ergonomics. This premium upper receiver drops traditional rear-charging limitations in favor of a smooth, Non-Reciprocating (NR) side-charging manual control layout. To successfully manage the raw muzzle blast inherent to compact large-bore setups, the assembly features an integrated project-forward linear Flash Can muzzle device tucked cleanly inside the handguard. It strikes the perfect intermediate balance between complete propellant burn and fast maneuverability for straight-wall compliant hunting structures or home-defense builds.

Key Features

  • Non-Reciprocating Side Charging: Fluid manual control side handle remains completely stationary while firing, providing smooth operation without interfering with tactical optics, mounts, or tracking sightlines.
  • Linear Flash Can Muzzle Device: Tames severe short-barrel muzzle blast by forcing sound pressure, thermal expansion, and aggressive concussive shock waves directly downrange and completely away from the operator.
  • Balanced 12.5-Inch Profile: Yields optimal velocity retention and downrange energy transfer over short pistol platforms while preserving outstanding handling speeds in tight spaces.
  • Precision 1/16 Twist Rate: Precision-rifled land profile engineered explicitly to rotationally stabilize common heavy hunting and defensive grain variations of .357 straight-wall projectiles.
  • QPQ Melonite Surface Hardening: Premium Salt Bath Nitride finish shields internal rifling and external steel surfaces against corrosive moisture, rapid thermal transfer, and surface scoring.
  • Free-Float Slim Handguard: Enhances intrinsic accuracy by isolating barrel harmonics while supplying modular M-LOK attachment slots and an expansive top Picatinny rail.

Technical Specifications

Charging System: Non-Reciprocating (NR) Left-Side Charging Layout
Muzzle Device: 5/8-24 Slimline Linear Flash Can (Blast Forwarder Device) Tucked Under Rail
Caliber / Chamber: 350 Legend (Straight-Wall Regulation Compliant)
Barrel Length & Contour: 12.5 Inches Medium Profile
Barrel Material: 4150 Chrome Moly Vanadium Steel
Twist Rate: 1:16 Twist
Barrel Coating Finish: QPQ Melonite / Black Nitride Corrosion-Resistant Exterior and Interior Lining
Gas System Length: Pistol-Length Gas System with 0.750" Low Profile Gas Block
Upper Receiver Type: Gibbz Arms G4 Billet Aluminum Side-Charging Receiver Layout (Type III Hardcoat Anodized)
Handguard Profile: 15 Inch Slim Free-Float Modular M-LOK Rail Layout (Extended layout to partially tuck Flash Can)
Manufacturing Origin: 100% Proudly Made in the USA

Why Choose This Product?

For deer hunters and marksmen operating under straight-wall legislative limits, the 350 Legend cartridge provides an exceptional balance of low recoil and massive kinetic transfer. Traditional rear charging handles force you to break your cheek weld and drop out of your optical plane just to manipulate the bolt. The PRO2A 12.5" Side Charging Upper eliminates this roadblock entirely, providing a fluid side-charging configuration that lets you cycle the action comfortably while staying completely locked onto your downrange target.

While ultra-short barrels restrict full propellant combustion and cause punishing side concussion, this 12.5-inch configuration retains optimal muzzle velocity and expansion profiles while keeping the platform light and fast-handling inside tight hunting blinds or vehicles. By pairing a heavy-duty US-made 4150 steel barrel with a project-forward linear flash can, harsh sound pressure and muzzle flame are directed completely away from your face and ears. Enveloped in an ultra-durable QPQ Melonite anti-corrosion barrier, matched with a rigid billet receiver, and finished with a lightweight free-float M-LOK rail system, this drop-in platform strips away configuration headaches to give you a clean-cycling precision powerhouse built for severe service straight out of the box.

More Information
SKU P2ANR350LGFS15PIS125CAN-TK
Rifle Caliber 350 Legend
Manufacturer Pro2A Tactical
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