Dirty Bird 7.5″ Pistol 556 M-LOK Complete Upper

This Dirty Bird Industries Complete Upper features a Black Nitride 7.5″” Sub-MOA Heavy Profile barrel chambered in 5.56 with a 1:7 twist. Built on a top-tier t-marked Forged Upper Receiver and finished with Dirty Bird’s 9.5″ SMRS M-LOK V2 Handguard available in several color options. No corners are cut when manufacturing these complete uppers. All barrels are dimpled and cold blued, use a black nitride 4140 steel gas block and a stainless steel gas tube. The gas block set screws feature knurled cone tops and are installed using blue locktite ensuring that no amount of vibration will cause the set screws to come loose but they will still be removable for servicing if needed.

Made in the USA – Backed by Dirty Bird Industries’ Limited Lifetime Warranty

Barrel

• Chambered in 5.56 (will also function with .223)
• 7.5″ Heavy Profile w/ 1:7 Twist
• Pistol Gas System
• Black Nitride Finish
• High Pressure Tested, Magnetic Particle Inspected and Test Fired
• Recessed Flash Can

Bolt Carrier Group

• Designed for use with both 5.56 and .223
• Strategically relocated load bearing surfaces reduce carrier tilt/can’t during recoil, thus increasing reliability and longevity
• Additional wall thickness in the gas exhaust port area for added strength and rigidity
• High Pressure Tested and Magnetic Particle Inspected

Handguard

• Patented ASAL (Anti-Slip, Anti-Lift) mounting system
• Included M-LOK QD Mount
• “Competition Cut” top rail

Upper Receiver

• Precision Machined from Top Tier 7075-T6 Aluminum Forgings (forge marks may vary)
  • Not all forged uppers are created equal and we only use the best for our uppers meaning they will be free from excessive pitting, machined to spec and finished with quality (not purple or chalky) hard coat anodizing
• M4 Feedramps
• Laser etched T-marks

Charging Handle

• Mil-Spec Style
• 6061-T6 Billet Aluminum
• Smooth Operation and Positive Grip under Extreme Conditions
• Type 3 Class 2 Hard Coat Anodizing

Available Handguard Colors: Black, Magpul™ FDE, Magpul™ OD Green, Midnight Bronze