Dirty Bird Industries

Dirty Bird 16″ 5.56 NATO Govt M-LOK V3 Rifle Kit

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MSRP: $574.95
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Dirty Bird 16″ 5.56 NATO Govt M-LOK V3 Rifle Kit

ThisDirty Bird 16″ 5.56 NATO Govt M-LOK V3 Rifle Kit features a Black Nitride 16″ Sub-MOA Government Profile barrel chambered in 5.56 with a 1:7 twist. Built on a top-tier Forged Upper Receiver and finished with the brand new Dirty Bird’s V3 15″ SMRS M-LOK Handguard, containing several mounting upgrades, 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 firing will cause the set screws to come loose but they will still able to be removed for servicing if needed.

NEW: The Dirty Bird SMRS Handguard features our new Rock Solid Patent Pending Anti-Slip / Anti-Lift attachment system. The clamp-on style of handguard attachment, utilized by many manufacturers is both secure and convenient but one problem has always been that clamping the handguard it tends to lift the front end of the handguard. The longer the handguard, the more drastic the effect. If you’ve ever had to bottom-out the front-sight post of a rail mounted BUIS in order to get the correct elevation, the issue is probably due to this “lift” phenomena.

Includes DBI Enhanced Bolt Carrier Group and Charging Handle

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


  • 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


  • Tough
    • Machined from aircraft grade 6061-T6 aluminum extrusions.
    • Anti-rotation tabs.
    • Type 3 hard anodizing or Cerakote sprayed at 1 mil thickness per spec.
  • Versatile
    • M-LOK attachment slots on all sides (except top)
    • Full Top 1913 Picatinny Rail
    • 5 Slot Rail Sections at the 3, 6 and 9 o’ clock positions
    • Raised QD attachment points at the 3 and 9 o’clock positions.
  • Practical
    • Aircraft Grade aluminum barrel nut. In our tests, the aluminum barrel nuts are just as effective when torqued to spec. Additionally, the weight savings enable us to utilize a longer barrel nut design which means more surface area at the attachment point without adding unnecessary weight.

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

Lower Build Kit

Mil Spec AR 15 Lower Build Kit comes with everything you need to complete your AR 15 and variant lower receiver. The AR 15 Lower Build  Kit has a 6 position Mil Spec Stock with sling attachment and standard OEM AR 15 Lower Parts kit

  • Complete MIL SPEC Buffer Tube Kit W/Stock (American Made)
    • 6-position 7075-T6 Aluminum Receiver Extension
    • 3 oz Buffer
    • Castle Nut & End Plate
    • Carbine Spring
  • MIL SPEC LOWER PARTS KIT (American Made)
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