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6 inch LEFT HAND 300 Blackout NR Side Charging Upper

PRO2A LEFT HAND 6" 300 Blackout 1/7 Pistol Length NR Side Charging Melonite AR-15 Upper with Flash Can Kit

6 inch LEFT HAND 300 Blackout Melonite Upper Kit

PRO2A LEFT HAND 6" 300 Blackout 1/7 Pistol Length Melonite M-LOK AR-15 Upper Kit - Suppressor Ready

PRO2A LEFT HAND 6" 300 Blackout 1/7 Pistol Length NR Side Charging Melonite AR-15 Upper Kit - Suppressor Ready

Special Price $799.99 $1,074.99
Availability:
In stock
SKU
P2ALNR300BLKBW5PIS6-BA-KIT
PRO2A Left Hand 6" 300 Blackout NR Side Charging Suppressor Ready Upper Kit

PRO2A LEFT HAND 6" 300 Blackout 1/7 Pistol Length NR Side Charging Melonite AR-15 Upper Kit - Suppressor Ready

Product Overview

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.

Key Features

  • True Left-Hand Architecture & BCG: Left-ejecting upper paired with a matched left-handed bolt carrier group routes high-pressure blowback, hot unburnt powder, and spent casings safely away from left-dominant eyes.
  • Non-Reciprocating Side Charging: Fluid side charging handle remains completely stationary while firing, providing smooth manual manipulation without losing your cheek weld or moving parts near your hand.
  • Suppressor-Ready Handguard Layout: Features an optimized, wide inside diameter handguard configuration designed to easily tuck standard suppressors, yielding a seamless, flush-fitting micro rifle aesthetic.
  • Complete Pistol Build Components: Consolidates your assembly project by grouping a premium mil-spec lower parts kit, left-hand BCG, and an adjustable pistol blade extension system under a single part number.
  • Micro 6" 300 Blackout Sweet Spot: Slashes overall length to maximize agility across tight spatial environments while utilizing a cartridge specifically engineered to maintain excellent terminal expansion from short barrels.
  • Fast 1/7 Twist Melonite Barrel: Aggressive 1/7 rifling land profile stabilizes heavy subsonic defensive loads and standard supersonic ammunition, treated inside and out with a Salt Bath Nitride (QPQ Melonite) lining.

Technical Specifications

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

 

Why Choose This Product?

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.

More Information
SKU P2ALNR300BLKBW5PIS6-BA-KIT
Barrel Length 6 inch
Rifle Caliber 300 Blackout
Manufacturer Pro2A Tactical
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