AR-15 300 BLK 5" Pistol Upper – Gold Spitfire, M-LOK

5" Gold Spitfire 300 BLK Upper: Specs

Unleash precision, power, and performance with the AR-15 300 Blackout 5" Pistol Upper Assembly featuring a Gold Spitfire muzzle device and Mlok handguard. Designed with seamless compatibility in mind, this upper integrates flawlessly with Mil-spec AR-15 lower receivers, offering a versatile and customizable upgrade for your AR platform. Perfect for those who demand excellence in both form and function, this assembly brings a new level of shooting efficiency to your setup.

Whether you’re looking to dominate at the range, enhance your tactical skills, or compete in shooting sports, the AR-15 300 BLK 5" Pistol Upper Assembly sets a new benchmark in performance, delivering consistent reliability and precision shot after shot. Elevate your shooting experience with this premium, compact upper assembly.

Key Features:

• Chamber: 300 Blackout – Optimized for 300 BLK cartridges, delivering high versatility with both subsonic and supersonic ammo.

• Barrel: 5" 4150 Chrome Moly Vanadium (CRMOV) – This black nitride finished barrel ensures durability and corrosion resistance, with a 1/7 twist rate for excellent accuracy with heavier projectiles.

• Muzzle Device: Spitfire with QD Blast – The quick-detach (QD) Spitfire muzzle device is finished in anodized gold, reducing recoil and muzzle rise while adding a unique touch of style.

• Muzzle Threads: 5/8x24 – Compatible with a wide range of suppressors and other muzzle devices, making customization a breeze.

• Handguard: 4" Slim Profile Hybrid Mlok Free Float – Lightweight, durable, and hardcoat anodized for protection. The Mlok slots provide easy mounting of accessories like lights, lasers, or grips, giving you full control over your build.

• Gas System: Micro Length – Ensures smooth cycling and reliable performance in compact builds.

• Gas Block: .750 Low Profile Steel Gas Block – Nitride coated for durability and protection against wear, with a Micro gas system for optimal reliability.

• Upper Receiver: A3 Flat-Top Upper – Precision-machined from 7075-T6 aluminum, this black hardcoat anodized receiver meets military specifications for durability and strength.

Specifications:

• Weight: 2.5 lbs
• Overall Length: 15"
• Platform: AR-15
• Chamber: 300 Blackout
• Barrel Material: 4150 Chrome Moly Vanadium (CRMOV)
• Barrel Length: 5"
• Barrel Finish: Black Nitride
• Twist Rate: 1/7
• Muzzle Thread: 5/8x24
• Muzzle Device: Spitfire with QD Blast, anodized gold finish
• Handguard: Moriarti 4" Slim Profile Mlok Free Float, Hybrid
• Gas System: Micro
• Gas Block: .750 Low Profile Steel, Nitride Coated

Additional Notes:

• Bolt Carrier Group (BCG) and Charging Handle (CH) are not included but can be purchased separately.
• Images may not be an exact representation of the product due to possible variations in finish and design.

Why Choose This Upper Assembly?

The AR-15 300 BLK 5" Pistol Upper Assembly redefines compact power and performance. From the unique gold Spitfire muzzle device to the Mlok handguard and Micro gas system, every aspect of this assembly is engineered to offer the perfect balance of durability, precision, and customization. Whether you’re building a short-barreled rifle (SBR) or enhancing your pistol build, this upper assembly delivers top-tier performance, ensuring every shot counts.

FAQ

Can 300 Blackout ammo be mixed up with 5.56?

Keep them separate. A 300 BLK round can chamber in a 5.56 rifle and firing it can destroy the gun, so mark your 300 BLK magazines and uppers clearly.

Is a bolt carrier group included?

No. Add a standard AR-15/5.56 bolt carrier group; it is available as an add-on on this page.

Is it suppressor ready?

Yes. The barrel is threaded 5/8x24, the standard pitch for .30 caliber muzzle devices and suppressor mounts.

Related: 300 Blackout AR-15 uppers · Micro ARP 300 Blackout pistols · 5.56 NATO vs 300 Blackout