Engineered for maximum reliability across both heavy subsonic and high-velocity supersonic ammunition, the PRO2A 16" 300 Blackout Upper Receiver Group comes completely assembled and headspaced to drop directly onto your mil-spec lower. Featuring an integrated flash can tucked neatly under a sleek free-float M-LOK handguard, this setup directs concussion, blast, and unburnt powder forward and away from the shooter—making it an ideal configuration for tight range configurations and home defense platforms.

Technical Product Specifications:

• Caliber: .300 AAC Blackout
• Barrel Length: 16 Inches
• Gas System: Pistol-Length (optimized for flawless cycling with both subsonic and supersonic ammo)
• Barrel Twist Rate: 1:7 Twist (ideal for stabilizing heavy, subsonic projectiles)
• Barrel Profile: Medium Profile for best weight vs performance ratio
• Barrel Material & Finish: 4150 Chrome Moly Vanadium - Premium Melonite / Nitride treatment for exceptional corrosion, wear, and rust resistance
• Handguard: 17 inch Free-Float M-LOK rail for secure attachment of lights, lasers, and grips
• Muzzle Device: Custom Flash Can (redirects noise, concussion, and blast energy downrange away from the shooter)
• Receiver Material: Mil-Spec forged 7075-T6 aluminum upper receiver with M4 feed ramps
• Platform Compatibility: Standard AR-15 mil-spec lowers
• 100% Made in the USA

Cycling and Ammunition Guide:

By utilizing a dedicated pistol-length gas system on a 16" barrel profile, this upper maximizes internal dwell time. When running standard supersonic ammunition unsuppressed, a standard carbine buffer weight and spring will deliver reliable extraction. For optimal performance when cycling heavy subsonic rounds with a suppressor, we recommend utilizing an adjustable gas block, reduced power buffer spring and/or tuning your lower with an H1 buffer.

Why Choose the Pro2A Tactical 16" 300 Blackout Upper with Flash Can?

Engineered for Reliable Cycling and Performance

The pistol-length gas system on this 16" barrel is precisely tuned to guarantee flawless cycling. Whether you are running heavy subsonic rounds or lightweight supersonic hunting loads, this complete upper delivers consistent extraction and feeding every time you pull the trigger.

Melonite (QPQ) Shielded Barrel for Longevity

Unlike standard matte finishes, our Melonite-finished barrel provides an ultra-hard, slick surface inside the bore and out. This advanced QPQ treatment significantly increases overall barrel life, improves shot-to-shot accuracy, and offers elite protection against moisture and harsh environmental conditions.

Ergonomic M-LOK Free-Float Handguard

Customize your tactical layout without adding unnecessary bulk. The lightweight, free-floating M-LOK handguard offers a full-length top Picatinny rail and ample M-LOK slots at the 3, 6, and 9 o'clock positions, allowing you to mount your favorite weapon accessories securely while keeping your rifle light and agile.

Direct Blast Control with the Forward Flash Can

Say goodbye to annoying side-concussion at the range. The integrated Flash Can acts as a dedicated blast forwarding device, sending the sound wave and muzzle blast directly downrange. This makes it an excellent choice for shooting alongside others, clearing tight spaces, or mitigating flash signatures in low-light tactical environments.

Lifetime Warranty and Support:

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