The Dirty Bird 14.5″ Midlength Magpul MOE SL complete upper is a great starting point for your next build. It features a 14.5” barrel chambered in 5.56 NATO that has been pinned and welded with an extended flash hider to reach an overall barrel length of 16″. It features a pinned front sight gas block and midlength gas system along with a Magpul MOE SL M-LOK handguard. The upper receiver is forged from aluminum to Mil-Spec dimensions and hardcoat anodized black. This build will include one of Dirty Bird’s enhanced BCGs, which are individually High Pressure Tested and Magnetic Particle Inspected to ensure flawless operation in any AR-15 platform rifle or pistol.
Features:
- 14.5” barrel chambered in 5.56 NATO that has been pinned and welded with an extended flash hider to reach 16″.
- Black Nitride Barrel Finisj
- Pinned front sight gas block
- Midlength gas system
- High Pressure Tested and Magnetic Particle Inspected
- Magpul MOE SL M-LOK handguard
- Extended A2 flash hider
- Flat Top M4 upper receiver
- Forged aluminum to Mil-Spec
- SUB-MOA Guarantee
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
Charging Handle
- Mil-Spec Style
- 6061-T6 Billet Aluminum
- Smooth Operation and Positive Grip under Extreme Conditions
- Type 3 Class 2 Hard Coat Anodizing
Made in the USA – Backed by Dirty Bird Industries’ Limited Lifetime Warranty
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.



