The Dirty Bird AR-15 is built upon a top-tier Forged Upper Receiver that has been finished with Dirty Bird’s 15” SMRS M-LOK Handguard. Our Mil-Spec AR-15 is chambered in 5.56 and is paired with a low profile, nitride gas block, stainless steel gas tube, and nitrided flash hider. We are firm believers in having a top-quality BCG for your rifle as it is the heart of the gun. This is why our AR’s are paired with our Dirty Bird Enhanced Bolt Carrier Group. Each BCG is HPT and MPI Tested and features additional wall thickness in the gas exhaust port area for added strength and rigidity.

Our Dirty Bird lowers are forged from 7075-T6 aluminum and are Mil 8625 Type 3 Class 2 hard-coat anodized, just as our uppers. These lowers feature mil-spec lower parts kits and have been enhanced with our Dirty Bird Single-Stage Nickel Teflon trigger groups. We then finish off the lower with a B5 Bravo carbine Mil-Spec stock and pair it with our Dirty Bird carbine buffer kit. All rifles come equipped with a B5 Stock and B5 pistol grip.


16″ barrel chambered in 5.56 NATO
4150 CMV barrel construction with Melonite finish
1:7 twist
1/2×28 muzzle threads
M4 feed ramps
QPQ-resistant finish
Mid-length gas system and .750 low-profile gas block
15″ M-LOK handguard
7075-T6 Mil-Spec upper
Charging handle, forward assist, and ejection port assembly
Forged 7075 lower receiver with type III hard coat anodized finish
Mil-Spec lower parts kit
B5 Stock & Grip
30-round magazine

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