Dirty Bird AR-15 True Mil-Spec Carbine Receiver Extension / Buffer Kit - H2 - D255

Upgrade your AR-15 build with the Dirty Bird AR-15 True Mil-Spec Carbine Receiver Extension / Buffer Kit – H2, the ultimate solution for reliable performance and enhanced recoil management. Designed for discerning shooters who demand precision and durability, this kit delivers mil-spec quality that ensures smooth cycling and reduced felt recoil, allowing you to stay on target during rapid fire or extended sessions.

Key Features

• True Mil-Spec 6-Position Receiver Extension: Crafted from high-strength 7075-T6 aluminum for superior durability and twice the strength of standard 6061 alloys, providing a rock-solid foundation for your stock.
• H2 Heavy Buffer (4.6 oz): Features two tungsten weights and one steel weight inside an aluminum body with a rubber bumper, optimizing bolt carrier speed to minimize bolt bounce and over-gassing issues common in carbine setups.
• Chrome Silicon Buffer Spring: Engineered for consistent tension and longevity, resisting fatigue to maintain reliable feeding and ejection round after round.
• Hardened Castle Nut and Mil-Spec End Plate: Includes staking cuts for secure installation, ensuring your buffer system stays locked in place under heavy use.

This kit addresses common pain points like excessive recoil and inconsistent cycling by slowing the reciprocating mass, resulting in flatter shooting, less muzzle rise, and improved control—perfect for tactical applications or competitive shooting.

Technical Specifications

• Material: 7075-T6 Aluminum Receiver Extension
• Buffer Weight: 4.6 oz (H2 configuration)
• Buffer Composition: 2 Tungsten + 1 Steel weights, aluminum housing
• Spring Type: Chrome silicon, mil-spec length
• Positions: 6 adjustable for customizable length of pull
• Made in USA: Backed by Dirty Bird’s limited lifetime warranty

Why Choose This Product?

In a market flooded with subpar imports, the Dirty Bird H2 Buffer Kit stands out with its commitment to mil-spec standards and American manufacturing. It solves over-gassed rifle problems by providing heavier buffering that reduces wear on internal components, extends part life, and enhances overall accuracy. Whether you’re building a new AR-15 or upgrading an existing one, this kit ensures your firearm operates at peak efficiency without compromising on reliability.

Equip your AR-15 with the Dirty Bird True Mil-Spec Carbine Receiver Extension / Buffer Kit – H2 today and experience the difference in performance and comfort. Ideal for shooters seeking a seamless integration of quality components for their tactical setup.

Frequently Asked Questions

Q: What makes the H2 buffer different from a standard carbine buffer?
A: The H2 buffer weighs 4.6 oz compared to the standard 3 oz, using tungsten weights to slow bolt carrier velocity, which reduces recoil impulse and improves cycling reliability in mid-length or carbine gas systems.

Q: Is this kit compatible with all mil-spec AR-15 stocks?
A: Yes, the 6-position receiver extension is true mil-spec diameter (1.148 inches), ensuring a perfect fit with any mil-spec collapsible stock.

Q: Will this kit help with recoil reduction in my over-gassed AR-15?
A: Absolutely, the heavier H2 buffer mitigates excessive gas pressure, leading to softer recoil, less muzzle flip, and smoother operation without needing adjustable gas blocks.