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The PRO2A LEFT HAND 20" 5.56 NATO 1/7 Rifle Length NR Side Charging Melonite M-LOK AR-15 Upper delivers maximum velocity retention and elite southpaw ergonomics for long-range and precision rifle configurations. Designed from the ground up for left-handed operators, this complete upper receiver replaces traditional rear charging components with a fluid, Non-Reciprocating (NR) left side-charging system. True left-side ejection geometry completely diverts hot spent brass and high-pressure carbon blowback away from your eyes. Paired with a full-length 20-inch Melonite barrel, this platform maximizes powder burn to flatten downrange trajectories and ensure repeatable sub-MOA precision groupings.
| 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: | 20 Inches Medium Profile Taper |
| Barrel Material: | 4150 Chrome Moly Vanadium Steel Base Material |
| Twist Rate: | 1:7 Twist |
| Barrel Finish: | QPQ Melonite / Black Nitride Corrosion-Resistant Exterior and Interior Lining |
| Gas System Profile: | Rifle-Length Gas System with 0.750" Low Profile Gas Block Set |
| Muzzle Device: | Standard 1/2-28 TPI 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 |
Use code with caution.Traditional right-handed rifles compromise a southpaw operator's comfort by spraying hot gas, raw particulate, and spent shells directly across their line of sight, while rear-charging handles force you to break your cheek weld. The PRO2A Left Hand 20" Side Charging Upper eliminates these operational hurdles completely. By modifying the manual control mechanism to a fluid, stationary left-side handle, you can charge your action naturally while remaining tightly locked behind your optic.By blending an optimal 1/7 twist rate with a full 20-inch Melonite barrel, this assembly squeezes the absolute maximum velocity footprint and flat trajectory potential out of your ammunition. Backed by a full rifle-length gas system that dampens felt recoil down to a gentle push, this upper receiver assembly delivers a clean, reliable, and highly accurate tactical upgrade built to perform on the precision line, benchrest, or in the field.
| SKU | P2ALNR556ACT15RIF20-TK |
|---|---|
| Barrel Length | 20 inch |
| Rifle Caliber | 5.56 NATO |
| Manufacturer | Pro2A Tactical |
