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16 inch LEFT HAND 400 Legend Upper | Side Charging

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

7.5 inch 400 Legend Upper | Left Hand | Side Charging

PRO2A LEFT HAND 7.5" 400 Legend 1/16 Pistol Length NR Side Charging Melonite M-LOK AR-15 Upper

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

Special Price $759.99 $939.99
Availability:
In stock
SKU
P2ALNR400LGFS15CAR18-HT
PRO2A LEFT HAND 18" 400 Legend 1/16 Carbine Length NR Side Charging Melonite M-LOK AR-15 Upper | Pro2A Tactical

PRO2A LEFT HAND 18" 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 paired with maximized velocity scaling and a dedicated mirror-image layout. The PRO2A LEFT HAND 18" 400 Legend Carbine Length Non-Reciprocating (NR) Side Charging Upper Assembly delivers a modern, robust upper configuration designed explicitly for straight-walled cartridge profiles and left-handed operators. Featuring a right-side charging handle that remains stationary while firing and a left-hand ejection port, this upper allows shooters to maintain their sight picture, clear disruptions smoothly, and keep escaping gases and spent brass completely away from their face. Engineered around a premium, modified left-hand billet receiver optimized for Winchester's hard-hitting 400 Legend cartridge, it houses an 18-inch 4150 CMV medium profile barrel. The stable 1:16 twist rate guarantees maximum stabilization for heavy hunting loads, yielding exceptional downrange kinetic force and energy output at extended mediums.

Key Features

  • True Left-Hand Ergonomics: Mirror-image billet design pairs right-side non-reciprocating charging handle mechanics with left-hand spent case ejection to provide full comfort and safety for southpaw shooters.
  • Non-Reciprocating Side Charging Action: Billet-machined right-side charging handle provides superior mechanical leverage and remains stationary during live fire cycles, protecting the shooter and saving space under large hunting optics.
  • High-Impact 18-Inch Caliber Platform: Extended barrel length maximizes velocity scaling and downrange terminal energy output compared to standard length options, perfect for demanding straight-wall big game hunting setups.
  • 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

Upper Receiver TypeLeft-Hand Eject, Patented Gibbz Arms G4 Billet-Machined Aluminum Non-Reciprocating (NR) Side Charging Upper, Type III Hardcoat Anodized Black
Charging InterfaceRIght-Side Non-Reciprocating Side Charging Handle
Barrel Length & Profile18-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—an issue amplified for left-handed marksmen forced to use right-hand platforms. Pro2A Tactical solves this operational challenge entirely. By marrying a clean left-hand non-reciprocating side charging layout with an extended premium 18-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 P2ALNR400LGFS15CAR18-HT
Barrel Length 18 inch
Rifle Caliber 400 Legend
Manufacturer Pro2A Tactical
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