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16 inch AR-15 LEFT HANDED AR-15 Non Reciprocating Side Charging 5.56 NATO Mid Melonite Upper

PRO2A LEFT HAND 16" 5.56 NATO 1/7 Mid Length NR Side Charging Heavy Barrel M-LOK AR-15 Upper - Unthreaded

20 inch LEFT HAND 5.56 NATO NR Side Charging Upper

PRO2A LEFT HAND 20" 5.56 NATO 1/7 Rifle Length NR Side Charging Melonite M-LOK AR-15 Upper

PRO2A LEFT HAND 18" 5.56 NATO 1/8 Mid Length NR Side Charging Melonite M-LOK AR-15 Upper

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Special Price $629.99 $789.99
Availability:
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SKU
P2ALNR556ACT15MID18-TK
PRO2A Left Hand 18" 5.56 NATO Mid Length NR Side Charging Upper

PRO2A LEFT HAND 18" 5.56 NATO 1/8 Mid Length NR Side Charging Melonite M-LOK AR-15 Upper

Product Overview

The PRO2A LEFT HAND 18" 5.56 NATO 1/8 Mid Length NR Side Charging Melonite M-LOK AR-15 Upper delivers competition-grade accuracy and flawless ergonomics built from the ground up for southpaw operators. Chambered in the ubiquitous 5.56 NATO caliber, this complete receiver assembly trades standard rear charging configurations for a fluid, Non-Reciprocating (NR) left-side charging handle. Paired with a true mirror-image left ejection configuration, this system redirects expanding powder exhaust, gas buildup, and blistering brass away from your face for an uncompromised, distraction-free shooting experience.

Key Features

  • True Left-Hand Architecture: Mirrored left-ejecting receiver profile paired with a matched left-hand bolt carrier group routes high-pressure carbon blowback and spent shells safely away from left-dominant eyes.
  • Non-Reciprocating Side Charging: Fluid manual control handle remains completely stationary while the action cycles, giving you absolute structural clearance for optics without moving parts near your support hand.
  • Extended 18-Inch Velocity: Adds crucial barrel length over standard setups to guarantee maximum powder burn time, creating flatter downrange trajectories and optimized muzzle velocity profiles.
  • Versatile 1/8 Twist Rifling: Precision-engineered rotational land pitch provides excellent, all-purpose stabilization across a wide array of grain weights, from standard 55gr range options up to heavy 77gr match loads.
  • QPQ Melonite Case Hardening: Highly durable Salt Bath Nitride treatment shields the internal bore and outer barrel surfaces against friction wear, intense thermal spikes, and damp field conditions.
  • Free-Float Slim M-LOK Handguard: Isolates barrel harmonics to eliminate accuracy variance, while supplying modular accessory slots and a continuous top rail.

Technical Specifications

Receiver Orientation: True Left-Handed / Left Ejection Port Architecture
Charging System: Non-Reciprocating (NR) Left-Side Charging Geometry
Caliber / Chamber: 5.56 NATO (Fully Compatible with .223 Remington rounds)
Barrel Length & Contour: 18 Inches Medium Contour Profile
Barrel Material: 4150 Chrome Moly Vanadium Steel - Made for us by Tactical Kinetics
Twist Rate: 1:8 Twist
Barrel Finish: QPQ Melonite / Black Nitride Corrosion-Resistant Exterior and Interior Lining
Gas System Length: Mid-Length Gas System with 0.750" Low Profile Gas Block Set
Muzzle Device: 1/2x28 TPI A2 Flash Hider
Muzzle Device: Standard A2 Flash Hider
Upper Receiver Type: Gibbz Arms G4 Left Handed Billet Aluminum Side-Charging Receiver, Gen 2 Handle (Type III Hardcoat Anodized)
Handguard Profile: 15 inch Slim Free-Float Modular M-LOK Rail Layout with Competition Top Picatinny Rail System
Manufacturing Origin: 100% Proudly Made in the USA

Why Choose This Product?

Traditional right-handed firearms ruin a left-handed shooter's focus by spraying hot gas, debris, and abrasive particles straight across their field of view. The PRO2A Left Hand 18" Side Charging Upper eliminates these operational compromises completely. By changing the manual manipulation point to a stationary, non-reciprocating left-side handle, you can charge your platform fluidly without breaking your cheek weld or pulling your focus off your primary optic. Stepping up to an 18-inch Melonite barrel maximizes the ballistic velocity of your ammunition, yielding an excellent trajectory path for medium-to-long-range applications. Backed by a smooth mid-length gas system that cushions cycling force and softens felt recoil, this complete receiver assembly delivers a clean, reliable, and uncompromised tactical solution straight out of the box.

More Information
SKU P2ALNR556ACT15MID18-TK
Barrel Length 18 inch
Rifle Caliber 5.56 NATO
Manufacturer Pro2A Tactical
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