Pro2A Tactical 6" 300 Blackout Pistol Length Melonite M-LOK AR-15 Upper - Suppressor Ready

Build the ultimate ultra-compact personal defense weapon (PDW) with the Pro2A Tactical 6" 300 Blackout Pistol Length Melonite M-LOK Upper. Specifically engineered for absolute reliability when shooting suppressed, this micro-sized upper receiver features a premium 6-inch Melonite barrel with a fast 1:7 twist rate to perfectly stabilize heavy subsonic projectiles. Designed with a smooth pistol-length gas system and a dedicated sturdy M-LOK handguard, this upper allows your silencer to sit as close to the handguard for a minimal footprint. It is the perfect choice for discrete home defense setups and compact tactical travel bags.

Key Features & Technical Specifications

• Caliber: .300 AAC Blackout (Optimized for both heavy subsonic and fast supersonic ammunition)
• Barrel Length: 6 Inches (Ultra-compact micro profile for maximum maneuverability)
• Gas System: Pistol-Length (Tuned to ensure reliable cycling under high-pressure suppressed use)
• Barrel Twist Rate: 1:7 Twist (Fast spin rate critical for stabilizing heavy 200gr+ subsonic defensive rounds)
• Barrel Profile: Govt Profile - the standard profile for tactical and serious use
• Barrel Finish: 4150 Chrome moly vanadium with Premium Melonite (QPQ) liquid nitriding for exceptional bore longevity and elite corrosion resistance
• Handguard: 5 inch Slim, Free-Float M-LOK rail system for modular accessory mounting
• Muzzle Thread: 5/8x24 TPI A2 Flash Hider 
• Receiver Material: Hard coat anodized black Mil-Spec forged 7075-T6 aluminum upper receiver with precision M4 feed ramps - comes with ejection port cover and forward assist
• Platform Compatibility: Fits any standard mil-spec AR-15 lower receiver

Why Choose the Pro2A Tactical 6" 300 Blackout Suppressor Ready Upper?

The Ultimate Subsonic Micro Powerhouse

Unlike the 5.56 NATO cartridge, which requires a long barrel to burn powder effectively, the .300 AAC Blackout was built from the ground up to achieve full powder burn and optimal terminal ballistics out of short barrels. A 6-inch barrel length gives you a devastatingly compact platform without sacrificing the raw energy required for close-range home defense situations. Note: Subsonic loads may require a reduced power buffer spring. 

Melonite (QPQ) Advanced Surface Hardening

Suppressor usage creates high backpressure, capturing extreme heat and dirty gases inside the system. Our Melonite-finished barrel is engineered to survive these harsh environments. The advanced QPQ liquid nitriding process treats both the inner bore and outer profile, giving you an ultra-hard surface that resists friction, stops rust in its tracks, and cleans up effortlessly after long range sessions.

Tucked, Suppressor-Ready Handguard Design

Achieve that highly coveted, seamless "look." The free-floating M-LOK handguard exposes the barrel to a minimum but still lets you install your favorite suppressor for a great setup. This maximizes your available handguard space for mounting tactical lights, lasers, and switches, while keeping the overall length of your weapon as short and handy as possible.

Flawless Reliability and Tuned Performance

Cycling a short barrel can be tricky, but our pistol-length gas system is meticulously ported to provide reliable dwell time. It generates the necessary gas pressure to cycle low-velocity subsonic rounds smoothly when paired with a suppressor, while still managing standard supersonic hunting loads without violent over-gassing. Forged from robust 7075-T6 aluminum, this upper guarantees professional-grade dependability.