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The PRO2A LEFT HAND 5" 300 Blackout 1/5 Micro Length NR Side Charging Melonite M-LOK AR-15 Upper with Flash Can delivers devastating close-quarters ballistic performance combined with advanced ergonomic execution for left-handed operators. Chambered fully in .300 Blackout, this premium barreled upper features a dedicated **Left-Hand Ejection port** paired with a sleek **Non-Reciprocating (NR) Left-Side Charging Upper Receiver system**. Engineered around an ultra-compact 5-inch heavy profile barrel with a lightning-fast **1/5 micro twist rate**, it is purpose-built to spin up and perfectly stabilize heavy subsonic ammunition downrange. By extending the free-float M-LOK handguard past the muzzle threads, the system integrates a project-forward linear Flash Can device cleanly tucked beneath the rail to force concussive pressure signatures straight away from the shooter.
| Charging System Orientation | Left Hand Non-Reciprocating (NR) Side-Charging Upper Assembly; Forward Handle Remains Stationary While Firing |
|---|---|
| Upper Receiver | Gibbz Arms G4 Left Handed Billet Aluminum, Tailored Left-Hand Ejection Pathway, Type III Hardcoat Anodized Matte Black Finish |
| Muzzle Device Setup | 5/8-24 TPI Slimline Linear Flash Can (Blast Forwarder Device) Tucked Under Rail Profile |
| Barrel Length & Contour | 5 Inches; Micro Profile |
| Barrel Material Composition | 4150 Chrome Moly Vanadium (CMV) Steel |
| Twist Rate | 1:5 Twist (Optimized for heavy subsonic loads out of micro configurations) |
| Barrel Coating Finish | QPQ Melonite / Liquid Salt Bath Nitride Interior Bore and Exterior Finish for Maximum Erosion Resistance |
| Gas Operating System | Micro-Length Gas System with 0.750" Low Profile Gas Block, Stainless Steel Gas Tube |
| Handguard Rails Profile | 6.5 Inch Slim Profile Free-Float Aluminum Handguard, Integrated Top Picatinny Rail Alignment, Matrixed M-LOK Structural Slots |
| Manufacturing Origin & Quality | 100% Proudly Assembled, Timed, and Headspaced in the USA backed by Pro2A Tactical Lifetime Factory Warranty Program |
Building an ultra-compact personal defense weapon requires specialized engineering that off-the-shelf standard mil-spec components fail to account for, particularly for left-handed shooters. Standard right-hand uppers force lefties to deal with hot brass and unburnt powder flying across their line of sight, while standard rear charging handles are clumsy to manipulate underneath modern combat optics. The Pro2A Left-Hand Non-Reciprocating Side-Charging system resolves both tactical hurdles natively on the bench. By pairing a dedicated left-hand ejection port with a smooth, stationary left-side charging layout, operators maintain an unbroken sight picture and flawless weapon control. Furthermore, standard 1/7 or 1/8 twist micro barrels fail to stabilize heavy subsonic projectiles out of a short 5-inch bore, causing dangerous keyholing and baffle strikes. Our fast 1/5 micro twist button-rifled barrel spins heavy payloads to full stabilization instantly, channeling expander gases cleanly into a tucked linear flash can. Skip the technical component matching and claim a cycle-tuned micro asset built for immediate left-handed tactical deployment.
| SKU | P2ALNR300BLKAXC65MIC5CAN-HT |
|---|---|
| Barrel Length | 5 inch |
| Rifle Caliber | 300 Blackout |
| Manufacturer | Pro2A Tactical |