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The PRO2A LEFT HAND 6" 300 Blackout 1/7 Pistol Length NR Side Charging Melonite AR-15 Upper Kit - Suppressor Ready represents an elite, ultra-compact performance package designed explicitly for southpaw builders building a hard-hitting Personal Defense Weapon (PDW). Purpose-built around a 6-inch micro barrel, this complete kit features a true left-ejecting architecture and upgrades standard weapon handling to a premium Non-Reciprocating (NR) side-charging layout. Engineered specifically for suppressor integration, the handguard features an enlarged inside diameter designed to partially tuck your favorite silencer, protecting your hands while streamlining the overall profile. Stripping the guesswork out of your custom assembly, this package arrives fully complete with a specialized left-handed Bolt Carrier Group (BCG), a premium Mil-Spec lower parts kit, and an adjustable pistol stabilizing blade assembly.
| Receiver Orientation: | True Left-Handed / Left-Side Ejection Geometry |
| Charging Mechanism: | Non-Reciprocating (NR) Left-Side Charging Handle System |
| Bolt Carrier Group (BCG): | Premium True Left-Handed BCG, M16 Profile, Nitride/Melonite Finished, Caliber-Matched Bolt Face |
| Lower Parts Kit (LPK): | Complete AR-15 Mil-Spec Lower Parts Kit (Includes Polished Trigger, Hammer, Pins, Detents, Springs, and Pistol Grip) |
| Stabilizing Assembly: | Pistol Stabilizing Blade Assembly complete with Pistol Buffer Tube, Recoil Spring, and Buffer |
| Caliber / Chamber: | 300 AAC Blackout (300 BLK) |
| Barrel Length & Contour: | 6 Inches Micro Profile Taper |
| Barrel Material: | 4150 Chrome Moly Vanadium Steel - Made for us by Kinetic MFG |
| Twist Rate: | 1:7 Twist Ratio Profile |
| Barrel Finish: | QPQ Melonite / Black Nitride Corrosion-Resistant Coating |
| Gas System Length: | Pistol-Length Gas System with 0.750" Low Profile Gas Block Set |
| Muzzle Device: | Standard 5/8-24 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: | 5 Inch Slim Free-Float Modular M-LOK Rail Layout with Continuous Top Picatinny Rail System |
| Manufacturing Origin: | 100% Proudly Made in the USA |
True Southpaw Safety from Suppressor BackpressureRunning a traditional right-handed upper with a suppressor forces a left-handed operator to look and breathe directly through a concentrated cloud of high-pressure carbon blowback, toxic gas, and burning oil. This mirrored left-ejection receiver routes all abrasive debris and gas safely to the left, keeping your line of sight crystal clear and your lungs protected.
Streamlined, Flush-Fitting Suppressor IntegrationInstead of a short, exposed barrel sticking awkwardly out of a tiny handguard, this kit features an oversized, suppressor-ready M-LOK handguard. Its widened inside diameter allows you to tuck a standard 1.5" diameter silencer partially underneath the rail. This shields your hand from high barrel temperatures and maximizes your usable rail space for tactical lights, lasers, and switches on an incredibly compact platform.
Maintain Your Cheek Weld with Stationary ControlsTraditional rear charging handles force you to break your cheek weld, collapse your shooting stance, and drag a handle right next to your optical mounts to clear a malfunction or cycle a round. The non-reciprocating side charger moves manual manipulation to a fluid side lever that stays completely stationary while firing, meaning zero moving parts near your support hand and lightning-fast weapon manipulation while keeping your eye glued to your optic.
Optimized for Micro-Barreled BallisticsUnlike cartridges like the 5.56 NATO, which require long barrels to burn powder effectively, the .300 AAC Blackout cartridge was built from its inception to achieve full powder burn and maximum velocity in short barrels. The 6-inch 4150 steel barrel utilizes an aggressive 1:7 twist rate, ensuring both lightweight supersonic rounds and heavy subsonic defensive ammunition are perfectly stabilized for maximum terminal expansion upon impact.
| SKU | P2ALNR300BLKBW5PIS6-BA-KIT |
|---|---|
| Barrel Length | 6 inch |
| Rifle Caliber | 300 Blackout |
| Manufacturer | Pro2A Tactical |