The Dirty Bird Carbine Mil-Spec Lower Build Kit includes everything you need to finish your lower receiver, including the popular Dirty Bird Single Stage Nickel Teflon Trigger.
Hogue Mil-Spec Overmold Stock
With soft touch overmolding and a snag-free, beard-friendly design, the Hogue Overmolded Collapsible Buttstock is a great addition to any build! Easy to install, replaces your existing buttstock in seconds. Rubber/polymer hybrid buttpad provides snag-free rifle shouldering. Reinforced polymer construction with overmolded rubber cheek rest. Rubber friction fit anti-rattle design prevents movement. Shielded operation lever. Multiple swivel sleeve & sling mounting locations.
Hogue Overmold Pistol Grip w/ Finger Grooves
This grip is constructed from a sturdy fiberglass and then overmolded with soft rubber for Hogue’s famous durable, comfortable and secure grip. Features a cobblestone finish, finger grooves and dual palm swells.
Dirty Bird Single Stage Nickel Teflon Trigger
Mil-spec trigger groups are reliable, easy to service and inexpensive. The problem is, mil-spec triggers tend to have a heavy trigger pull (sometimes up to 8 or 9 pounds) and the gritty take-up makes it difficult to tell where the break will be. This is where the Dirty Bird Single Stage Nickel Teflon Trigger Group comes in. Featuring honed and polished engagement surfaces, a slick and durable Nickel Teflon finish and finely tuned spring rate for the trigger and hammer springs, you get a smooth trigger pull with very little take-up and a crisp clean break at 5 – 5.5 pounds.
Dirty Bird AR-15 True Mil-Spec Carbine Receiver Extension / Buffer Kit
- 100% American Made Kit
- 7075-T6 Aluminum 6-Position Mil-Spec Receiver Extension (7075-T6 Aluminum is nearly twice as strong as 6061)
- 3oz Carbine Recoil Buffer w/ Steel Counter Weights
- Hardened Castle Nut w/ Staking Cuts
- Mil-Spec End Plate
Dirty Bird AR-15 Lower Parts Kit Minus FCG & Pistol Grip
- 100% American Made Kit
- Includes extra takedown / pivot pin detent and detent spring
- Includes enhanced polymer trigger guard
Dirty Bird Industries — Premium AR-15 and AR-10 Components, Built to Last.
Designed for builders who demand uncompromising quality, reliable performance, and accessible pricing without the premium markups common from larger brands.
Founded by Builders, Built to Last
Founded in 2015 by brothers Jay and Dustin Pitcher in a Bakersfield, California garage, Dirty Bird Industries started as a family-owned operation specializing in custom Cerakote finishes and high-quality AR parts. Building on experience from its sister site, AR15Discounts.com, Dirty Bird Industries has grown into a nationwide company with a dedicated team focused on American-made gear that shooters trust.
American-Made Quality and Precision
Through strategic partnerships with leading domestic manufacturers, Dirty Bird Industries sources and develops components using advanced CNC machining, rigorous testing, and mil-spec standards. By managing larger volumes, the company delivers proven, high-end materials and precision engineering at fair prices that meet the high standards set for its own builds.
Proven Components for Serious Builds
Standout offerings include precision-forged 7075-T6 upper and lower receivers, enhanced black nitride bolt carrier groups, single-stage nickel Teflon triggers, free-float M-LOK handguards, complete upper assemblies, and comprehensive lower parts kits. These products create a cohesive selection for everything from custom builds to high-performance rifles nationwide, supported by batch inspections, mil-spec compliance, and ongoing innovations.
Zero Risk Guarantee Program
For total confidence, Dirty Bird Industries backs eligible parts and accessories with its Zero Risk Guarantee Program. This includes free shipping on orders over $50, package protection up to $5,000, lifetime free returns with full refunds within 45 days or store credit after, and expert support. As passionate shooters, the team at Dirty Bird Industries stands behind every product because the company builds, tests, and uses them too, providing authentic value and dependable gear.
