Product Description

Unlock peak ballistic performance and true ergonomic comfort with the PRO2A LEFT HAND 20" 5.56 NATO Rifle-Length Non-Reciprocating (NR) Side Charging AR-15 Upper Kit. Meticulously configured for southpaw shooters, this master build package eliminates right-side gas blowback and facial debris by utilizing a dedicated left-hand ejecting billet receiver platform. This complete field kit includes a headspaced 20-inch precision barrel, a true rifle-length direct impingement gas system, a specialized left-hand full-auto profile bolt carrier group, a complete mil-spec lower parts kit, and a 6-position collapsible stock assembly—giving you everything required to finalize your stripped lower receiver.

Key Features

• True Left-Hand Architecture: Engineered with a dedicated left-side ejection port and a mirrored left-hand bolt carrier group to safely redirect blowback gases away from the operator's face.
• Non-Reciprocating Left-Side Charger: The patent-pending Gibbz Arms G4 side-charging handle remains stationary during cycling, preventing standard rear charging handle interference under large long-range optics.
• Maximum Ballistic Velocity: The 20-inch target profile barrel allows a complete powder burn of the 5.56x45mm cartridge, optimizing muzzle velocity, reducing drop, and extending effective operational range.
• Rifle-Length Gas System: Dramatically lowers peak port pressure, mitigating parts wear and creating a remarkably soft, predictable recoil impulse.
• QPQ Melonite Armor: Barrel bore, chamber, and exterior are liquid nitrocarburized to ensure maximum surface hardness, seamless heat dissipation, and superior corrosion resistance.

Technical Specifications

Why Choose This Product?

Left-handed shooters choosing a standard right-hand sporting rifle often sacrifice eye relief, breath clean air, and wrestle with clumsy operational physics. The PRO2A Left-Hand 20" 5.56 NATO Side Charging Kit fixes this by mirroring the ejection geometry and integrating the specialized Gibbz Arms G4 side-charging framework. This setup lets you maintain your cheek weld and track downstream targets unhindered while utilizing an extended 20-inch precision barrel to maximize downrange kinetic energy. Completely paired with a custom left-hand full-auto carrier, complete internal frame parts, and stock hardware, this system provides absolute harmony across all mechanical components—backed by a comprehensive Lifetime Structural Warranty.