The LBE Ar Milspec Buffer Tube Brn is a mil-spec diameter recoil buffer tube designed for AR-15 builds and customization. Built to accommodate any collapsible AR-15 stock that accepts a mil-spec tube, this extension serves as the backbone of your carbine's receiver assembly—whether you're assembling your first rifle, upgrading an existing platform, or stocking a parts drawer for future projects. LBE Unlimited manufactures this component domestically, and the brown finish delivers a classic look that pairs well with a wide range of furniture and finishes.

A quality buffer tube is one of those foundational parts that deserves attention. This mil-spec diameter extension comes pre-threaded and ready to accept your chosen stock, eliminating guesswork and saving time during assembly. The six-position design gives you adjustability to dial in length of pull for comfort and control, whether you're running a carbine for hunting, competition, home defense, or the range.

LBE Unlimited's reputation for domestic manufacturing and attention to detail makes this a solid choice for builders who value reliability in their components. The brown finish resists wear and maintains appearance through regular use, and the mil-spec standard ensures compatibility with the broadest selection of AR-15 collapsible stocks on the market. If you're building from a lower receiver or replacing a worn tube, this is a straightforward, no-frills solution.

Key Features

• Mil-spec diameter fits all collapsible AR-15 stocks designed for mil-spec tubes
• Pre-threaded for immediate installation
• Six-position adjustability for length of pull customization
• Brown finish
• Domestic manufacturing by LBE Unlimited
• Serves as the receiver extension for carbine-length builds

Specifications

Frequently Asked Questions

Will this buffer tube work with my AR-15 collapsible stock?

This mil-spec diameter tube is designed to fit any collapsible AR-15 stock that requires a mil-spec tube. Verify your stock's specifications call for mil-spec diameter before ordering.

Is this tube ready to install?

Yes. The LBE Ar Milspec Buffer Tube comes pre-threaded, so it's ready to accept your chosen six-position collapsible stock immediately after installation on your lower receiver.

What does six-position mean?

Six-position refers to the number of adjustment points along the tube where a compatible collapsible stock can lock, allowing you to customize the length of pull from fully collapsed to fully extended.

Is this made in the USA?

Yes. LBE Unlimited manufactures this buffer tube domestically.