Mil-Spec 6-Position Buffer Tube Kit – 7075-T6 Aluminum AR Receiver Extension with Castle Nut Black

Upgrade your rifle with this Mil-Spec 6-Position Buffer Tube Kit, engineered for strength, precision, and reliable performance. Designed to fit AR-15 platform rifles, this receiver extension allows secure installation of Mil-Spec compatible collapsible stocks while providing adjustable length of pull for improved shooting comfort.

Machined from premium 7075-T6 aircraft-grade aluminum, this buffer tube offers superior durability compared to standard commercial tubes. The hardcoat anodized black finish enhances corrosion resistance and protects against wear under demanding use.

With six adjustable stock positions, this buffer tube allows shooters to quickly customize fit for tactical use, range shooting, or training applications. The included castle nut ensures a secure and stable installation.

Proudly manufactured in the USA, this Mil-Spec buffer tube delivers dependable performance for long-term use.

✅ Key Features

• Compatible with AR-15 Mil-Spec collapsible stocks
• Precision machined from 7075-T6 aluminum
• Hardcoat anodized black finish for durability
• Six adjustable stock positions for custom fit
• Includes castle nut for secure installation
• Mil-Spec receiver extension dimensions
• Lightweight yet extremely strong construction
• Corrosion and wear-resistant
• Made in the USA

✅ Specifications

• Material: 7075-T6 aluminum

• Finish: Hard-coated anodized black

• Positions: 6-position adjustable

• Type: Mil-Spec receiver extension

• Compatibility: AR-15 Mil-Spec stocks