Dirty Bird 16″ Left-Handed Complete Upper - Government Midlength 5.56 M-LOK - D114

Dirty Bird 16″ Left-Handed Complete Upper – Government Midlength 5.56 M-LOK

The Dirty Bird 16″ Left-Handed Complete Upper is purpose-built for left-handed shooters seeking reliability, precision, and compatibility with mil-spec AR-15 lowers. Featuring a forged Stag Arms A3 upper receiver with a functional forward assist and dust cover, this upper delivers smooth ergonomics and high performance.

At its core is a 16″ government profile barrel chambered in 5.56 NATO (.223 compatible) with a 1:7 twist and Black Nitride finish. The mid-length gas system ensures smoother recoil and improved reliability, backed by a Sub-MOA guarantee. The ASAL “Competition Cut” M-LOK handguard provides secure mounting and optimal heat dissipation.

Now includes a BCG and charging handle—a complete solution for any left-handed AR builder.

Barrel

• Chambered in 5.56 (will also function with .223)
• 16″” Government Profile w/ 1:7 Twist
• Mid-Length Gas System
• Black Nitride Finish
• High Pressure Tested and Magnetic Particle Inspected
• Sub-MOA Guarantee

Handguard

• Patented ASAL (Anti-Slip, Anti-Lift) mounting system
• “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
• Forge Markings may vary
• May or may not have T-Marks

Bolt Carrier Group

• Finish: Salt Black Nitride
• Bolt: 9310 Alloy Steel (High Hardness)
• Carrier: 8620 Aircraft Grade Steel
• Extractor: Shot Peened and Case Hardened D2 Tool Steel
• Firing Pin: Mil-spec 8740 steel with hard chrome finish
• Gas Key: Mil-Spec w/ properly staked Grade-8 screws & Permatex No. 3 sealed
• Cam Pin: 8620 Steel w/ Black Nitride Finish

Backed by Dirty Bird Industries’ Limited Lifetime Warranty
100% American Made