
Availability: In Stock
Current Stock: Out of stock
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.
| Brand | LBE Unlimited |
| Product Type | Buffer Tube / Receiver Extension |
| Diameter | Mil-Spec |
| Positions | Six |
| Finish | Brown |
| Platform Compatibility | AR-15 Carbine |
| Pre-threaded | Yes |
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.
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.
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.
Yes. LBE Unlimited manufactures this buffer tube domestically.



SKU: 167516239 • Width: 5.25in • Height: 1.75in • Depth: 11in • Weight: 5.8oz





Availability: In Stock
Current Stock: Out of stock
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.
| Brand | LBE Unlimited |
| Product Type | Buffer Tube / Receiver Extension |
| Diameter | Mil-Spec |
| Positions | Six |
| Finish | Brown |
| Platform Compatibility | AR-15 Carbine |
| Pre-threaded | Yes |
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.
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.
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.
Yes. LBE Unlimited manufactures this buffer tube domestically.
SKU: 167516239 • Width: 5.25in • Height: 1.75in • Depth: 11in • Weight: 5.8oz


