Aero Precision Mil-Spec Carbine Buffer Tube

The Aero Precision Mil-Spec Carbine Buffer Tube (brand part number APRH100136C) is a 7075-T6 aluminum receiver extension built to mil-spec dimensions for AR-15 and AR-10 platforms. Aero Precision machines this tube with 6-position spacing, matching the industry-standard collapsible stock adjustment range so it works with the widest range of aftermarket stocks. The mil-spec outer diameter means it’s a drop-in fit for any stock or buffer built to the same standard, without the fitment headaches that come with commercial-spec parts. Made in the USA, it’s a solid foundation for a carbine build or a factory-tube replacement.

Key Specifications

• Machined from 7075-T6 aluminum, a stronger alloy than standard 6061 buffer tubes.
• Cut to mil-spec dimensions, ensuring compatibility with mil-spec stocks and buffers.
• Features 6-position adjustment spacing, the industry-standard collapsible stock range.
• Styled as a carbine buffer tube, sized for standard AR-15/AR-10 carbine builds.
• Weighs approximately 0.28 lb, keeping the rear of the build light.
• Made in the USA by Aero Precision.

Frequently Asked Questions

Is this compatible with commercial-spec stocks? No, this is a mil-spec diameter tube; it pairs with mil-spec stocks and buffers only.

Will this fit an AR-10? Yes, it’s built to the same mil-spec dimensions used across AR-15 and AR-10 platforms.

How many position settings does it have? Six, matching the standard collapsible stock adjustment range.

Buy the Aero Precision Mil-Spec Carbine Buffer Tube

Build on a mil-spec foundation that works with the widest range of aftermarket stocks. Order it from our Aero Precision lineup, part of our AR buffer system selection, at our Lubbock, Texas gun shop.