
Availability: In Stock
The LBE Unlimited mil-spec 6-position buffer tube for AR-15 is a straightforward, US-made replacement or upgrade component for any AR platform build running collapsible furniture. If you're assembling a new rifle, rebuilding an upper, or keeping spares on the bench, this tube delivers mil-spec diameter compatibility with any stock designed to accept standard AR-15 receiver extensions. The gray Colt finish matches the industrial, no-nonsense aesthetic of mil-spec parts and blends cleanly with most builds.
LBE Unlimited has built a reputation manufacturing AR components stateside, and this buffer tube reflects that straightforward approach: pre-threaded for immediate installation, properly dimensioned to spec, and ready to pair with your choice of collapsible stock. The six-position design gives you adjustment options for length of pull, letting you tune ergonomics for your frame, gear loadout, or shooting position.
Whether you're a competitive shooter dialing in a rifle, a hunter looking for a reliable mil-spec extension, or a builder stocking your parts inventory, this tube handles the job without fanfare. It's the kind of component that works quietly in the background—as it should.
| Brand | LBE Unlimited |
| Model | MBUF002CG |
| Tube Type | Mil-Spec Receiver Extension |
| Positions | 6 |
| Finish | Gray (Colt) |
| Platform | AR-15 |
| Made In | USA |
Yes, if your stock is designed for mil-spec diameter receiver extensions. This tube has standard mil-spec diameter and is pre-threaded for direct installation.
Mil-spec and commercial tubes have different internal diameters and are not interchangeable. Make sure your stock is mil-spec before purchasing this tube.
Yes. The tube comes pre-threaded, so you can install it directly onto your lower receiver without additional machine work.
Yes. The six-position design allows you to adjust the tube's collapsed length to accommodate different stocks and preferences.

SKU: 115691108 • Width: 5.2in • Height: 1.7in • Depth: 11in • Weight: 0.3oz





Availability: In Stock
The LBE Unlimited mil-spec 6-position buffer tube for AR-15 is a straightforward, US-made replacement or upgrade component for any AR platform build running collapsible furniture. If you're assembling a new rifle, rebuilding an upper, or keeping spares on the bench, this tube delivers mil-spec diameter compatibility with any stock designed to accept standard AR-15 receiver extensions. The gray Colt finish matches the industrial, no-nonsense aesthetic of mil-spec parts and blends cleanly with most builds.
LBE Unlimited has built a reputation manufacturing AR components stateside, and this buffer tube reflects that straightforward approach: pre-threaded for immediate installation, properly dimensioned to spec, and ready to pair with your choice of collapsible stock. The six-position design gives you adjustment options for length of pull, letting you tune ergonomics for your frame, gear loadout, or shooting position.
Whether you're a competitive shooter dialing in a rifle, a hunter looking for a reliable mil-spec extension, or a builder stocking your parts inventory, this tube handles the job without fanfare. It's the kind of component that works quietly in the background—as it should.
| Brand | LBE Unlimited |
| Model | MBUF002CG |
| Tube Type | Mil-Spec Receiver Extension |
| Positions | 6 |
| Finish | Gray (Colt) |
| Platform | AR-15 |
| Made In | USA |
Yes, if your stock is designed for mil-spec diameter receiver extensions. This tube has standard mil-spec diameter and is pre-threaded for direct installation.
Mil-spec and commercial tubes have different internal diameters and are not interchangeable. Make sure your stock is mil-spec before purchasing this tube.
Yes. The tube comes pre-threaded, so you can install it directly onto your lower receiver without additional machine work.
Yes. The six-position design allows you to adjust the tube's collapsed length to accommodate different stocks and preferences.
SKU: 115691108 • Width: 5.2in • Height: 1.7in • Depth: 11in • Weight: 0.3oz
