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18 inch 400 Legend AR-15 Rifle | Made in the USA

P2A PATRIOT 18" 400 Legend 1/16 Carbine Length Melonite M-LOK Rifle

18 inch 400 Legend Upper | Premium Side Charging Line

PRO2A 18" 400 Legend 1/16 Carbine Length NR Side Charging Melonite M-LOK AR-15 Upper

PRO2A 16" 400 Legend 1/16 Carbine Length NR Side Charging Melonite M-LOK AR-15 Upper

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Special Price $739.99 $909.99
Availability:
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SKU
P2ANR400LGFS12CAR16-HT
PRO2A 16" 400 Legend 1/16 Carbine Length NR Side Charging Melonite M-LOK AR-15 Upper | Pro2A Tactical

PRO2A 16" 400 Legend 1/16 Carbine Length NR Side Charging Melonite M-LOK AR-15 Upper

Product Description

Elevate your hunting build and tactical weapon mechanics with the advanced ergonomics of side charging operation. The PRO2A 16" 400 Legend Carbine Length Non-Reciprocating (NR) Side Charging Upper Assembly delivers a modern, robust upper configuration designed explicitly for straight-walled cartridge profiles. Built with an ergonomic left-side charging handle that remains stationary while firing, this upper allows operators to maintain their sight picture and clear disruptions smoothly without manipulating a traditional rear charging handle under large optics configurations. Engineered around a premium, modified billet receiver optimized for Winchester's hard-hitting 400 Legend cartridge, it houses a 16-inch 4150 CMV medium profile barrel. The stable 1:16 twist rate guarantees maximum stabilization for heavy hunting loads, yielding exceptional kinetic terminal force out to medium ranges.

Key Features

  • Non-Reciprocating Side Charging Action: Billet-machined left-side charging handle provides superior mechanical leverage and remains stationary during live fire cycles, protecting the shooter and saving space under large optics.
  • High-Impact 400 Legend Caliber: Custom chambered to deploy Winchester's specialized straight-wall cartridge, maximizing downrange ballistics for modern deer and hog hunting landscapes.
  • Specialized Straight-Wall Feed Optimization: Recoil and loading parameters are cleanly managed via a single large feed ramp configuration inside the receiver frame to combat case feeding friction.
  • Free-Float 15-Inch M-LOK Rails: Slim-profile, rugged free-float aluminum handguard isolates the barrel from exterior handling forces to support true sub-MOA precision variables.
  • QPQ Melonite Coating Matrix: Premium liquid-bath nitride treatment inside and out provides rugged protection against barrel throat erosion, extreme friction loads, and corrosive weather environments.

Technical Specifications

  • Charging Interface: Left-Side Non-Reciprocating Side Charging Handle
  • Upper ReceiverPatented Gibbz Arms G4 Billet-Machined Aluminum Non-Reciprocating (NR) Side Charging Upper, Type III Hardcoat Anodized Black
    Barrel Length & Profile16-Inch Medium Contour Profile Barrel
    Caliber400 Legend (Winchester Straight-Wall)
    Twist Rate1:16 Twist Rate (Highly optimized for standard weight straight-wall hunting ammunition)
    Barrel Material & Finish4150 Chrome Moly Vanadium (CMV) Steel with QPQ Melonite Nitride Finish
    Gas System TopologyCarbine Length Direct Impingement System with Low-Profile Gas Block
    Handguard Matrix15-Inch Free Float Slim Aluminum M-LOK Handguard Rail System
    Muzzle DeviceStandard A2 Big Bore Flash Hider, 5/8x24 Thread Pitch Configuration

    Why Choose This Product?

    Traditional rear charging handles often conflict with the low-profile mounts and thick turrets of modern hunting optics, introducing manipulation lag during fast follow-up shots. Pro2A Tactical solves this operational challenge entirely. By marrying a clean non-reciprocating side charging layout with a premium 16-inch Melonite barrel and a specialized straight-wall feeding upper receiver, this configuration maximizes your tactical leverage, ensures relentless extraction cycles in extreme hunting elements, and guarantees premium performance engineered to outlast standard builds.

    More Information
    SKU P2ANR400LGFS12CAR16-HT
    Barrel Length 16 inch
    Rifle Caliber 400 Legend
    Manufacturer Pro2A Tactical
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