The Dirty Bird AR-10 / LR-.308 Carbine Buffer Kit features a true Mil-Spec 6-Position Receiver Extension (buffer tube) machined from American Made 7075-T6 Aluminum, 5.3oz LR-308 Heavy Recoil Buffer w/ steel counter weights, a chrome silicon buffer spring, hardened castle nut with staking cuts and mil-spec end plate.
When it comes to your buffer system, quality counts. If the spring rate isn’t correct, it can cause cycling issues, if your buffer uses a solid weight instead of free moving tungsten counter weights it can cause bolt bounce. Poor quality aluminum can lead to a fracture in the receiver extension. Unfortunately there are a ton of receiver extension / buffer kits on the market (import AND domestic) that suffer from one or all of these shortcuts in the manufacturing process.
You have Dirty Bird’s word that this kit is made from the finest materials, using modern manufacturing processes. If you’re looking for true mil-spec quality, don’t pay more, don’t settle for less; this is your kit.
Includes:
- 7075-T6 Aluminum 6-Position Mil-Spec Receiver Extension (7075-T6 Aluminum is nearly twice as strong as 6061)
- Exceptionally smooth inside diameter for quiet operation
- 5.3oz LR-308 Heavy Recoil Buffer
- 304 Stainless Steel Construction
- Sliding Tungsten Counter Weights
- Chrome Silicon LR-308 Carbine Buffer Spring w/ Black Oxide Finish
- Hardened Castle Nut w/ Staking Cuts
- Mil-Spec End Plate
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.





