Dirty Bird AR-15 True Mil-Spec Carbine Receiver Extension / Buffer Kit - H1 - D254

Upgrade your AR-15 build with the Dirty Bird AR-15 True Mil-Spec Carbine Receiver Extension / Buffer Kit – H1, the essential component for reliable performance and smooth operation. Designed for enthusiasts and professionals alike, this kit delivers military-grade durability and precision engineering to ensure your rifle cycles flawlessly, even under demanding conditions. Whether you’re assembling a custom tactical setup or fine-tuning an existing one, this H1 buffer kit minimizes recoil, enhances accuracy, and provides seamless compatibility with standard carbine stocks.

Key Features

• True Mil-Spec 6-Position Receiver Extension: Crafted from high-strength 7075-T6 aluminum for exceptional durability and a perfect fit with Mil-Spec buttstocks, allowing adjustable length-of-pull for optimal comfort and control.
• H1 Recoil Buffer (3.8 oz): Featuring one tungsten weight and two steel weights, this heavier buffer reduces bolt carrier velocity, taming over-gassing in mid-length or rifle-length systems while preventing excessive wear on internal components.
• Standard Carbine Buffer Spring: Provides consistent tension for reliable feeding and ejection, ensuring your AR-15 returns to battery quickly and smoothly after every shot.
• Complete Kit Components: Includes a carbine end plate and castle nut for secure installation, making assembly straightforward without the need for additional parts.

Specifications

• Material: 7075-T6 Aluminum (buffer tube)
• Buffer Weight: H1 – 3.8 oz
• Positions: 6-Position Adjustable
• Compatibility: AR-15 platform, Mil-Spec carbine stocks
• Weight: 11.04 oz (kit total)
• Dimensions: Length: 13.1 in, Width: 6.5 in, Height: 1.9 in

Why Choose This Product

Building or upgrading an AR-15 often means dealing with inconsistent cycling, harsh recoil, or compatibility issues—problems this kit solves head-on. The H1 buffer excels in setups with suppressors or adjustable gas blocks, reducing felt recoil by up to 20% compared to standard carbine buffers, leading to faster follow-up shots and less shooter fatigue. Its American-made construction withstands rigorous use, from range days to tactical training, while maintaining the true Mil-Spec dimensions that prevent sloppy stock wobble. Unlike generic kits, Dirty Bird’s attention to detail ensures longevity and performance you can trust, helping you focus on the shot rather than the mechanics.

Ready to elevate your AR-15’s reliability? Equip it with the Dirty Bird True Mil-Spec Carbine Buffer Kit – H1 today and experience the difference in every cycle.

Frequently Asked Questions

Q: What makes the H1 buffer different from a standard carbine buffer?
A: The H1 buffer is heavier at 3.8 oz versus the standard 3 oz, incorporating a tungsten weight to slow bolt speed, reduce recoil, and improve control in over-gassed or suppressed AR-15 configurations.

Q: Is this kit compatible with all AR-15 stocks?
A: Yes, the true Mil-Spec receiver extension fits all standard carbine stocks, ensuring a secure and adjustable fit without modifications.

Q: Does the kit include installation hardware?
A: Absolutely, it comes complete with the buffer tube, H1 buffer, spring, end plate, and castle nut for a full, hassle-free installation.