Lbe Unlimited115750509
LBE Unlimited PBTBLK Black Pistol Buffer Tube for AR-Platform$22.20
Availability: In Stock
Building an AR pistol means staying within the legal lines—and the LBE Unlimited AR-platform pistol buffer tube kit does exactly that. Unlike a traditional stock assembly, this kit provides the receiver extension and recoil management your AR pistol needs without a buttstock provision, keeping your build compliant with federal regulations. It's purpose-built for shooters who want a tuned, functional pistol platform without compromise.
The included foam end cap is a practical touch: it cushions the back of the tube for a more comfortable cheek weld when you're shooting, whether you're running drills at the range or working through a carbine course. That small detail matters when you're behind the gun for hours. LBE Unlimited manufactures these kits domestically, so you're getting a quality, made-in-the-USA component that plays well with standard AR-15 platforms.
This is a complete kit, so you're not hunting down parts separately. Everything you need to finish your lower receiver—buffer tube, carbine recoil spring, standard carbine buffer, receiver end plate, and castle nut—comes in the box. It's mil-spec dimensioned, meaning it integrates cleanly with standard AR uppers and lowers. If you're assembling an AR pistol and need a reliable, legal receiver extension that actually performs, this is the straightforward choice.
| Brand | LBE Unlimited |
| Product Type | AR Pistol Buffer Tube Kit |
| Finish | Black |
| Includes | Pistol buffer tube, carbine recoil spring, standard carbine buffer, receiver end plate, castle nut, foam end cap |
| Compatibility | AR-15 platform (lower receiver) |
| Specification | Mil-spec |
Yes. This kit has no provision to mount a buttstock, which is the defining feature of a compliant AR pistol platform. Always verify your local and federal regulations, but this design is built with that legal distinction in mind.
Yes, it's mil-spec dimensioned and designed for standard AR-15 platform lower receivers. It integrates with uppers the same way a traditional receiver extension does.
Everything you need to complete the receiver extension: the pistol buffer tube itself, a carbine recoil spring, a standard carbine buffer, receiver end plate, castle nut, and a foam end cap for the tail of the tube.
The foam cap covers the end of the buffer tube and provides cushioning for a more comfortable cheek weld when shooting. It's a functional comfort feature for extended range sessions or training.
SKU: 115669663 • Width: 6.4in • Height: 2.2in • Depth: 12.5in • Weight: 1oz
Availability: In Stock
Building an AR pistol means staying within the legal lines—and the LBE Unlimited AR-platform pistol buffer tube kit does exactly that. Unlike a traditional stock assembly, this kit provides the receiver extension and recoil management your AR pistol needs without a buttstock provision, keeping your build compliant with federal regulations. It's purpose-built for shooters who want a tuned, functional pistol platform without compromise.
The included foam end cap is a practical touch: it cushions the back of the tube for a more comfortable cheek weld when you're shooting, whether you're running drills at the range or working through a carbine course. That small detail matters when you're behind the gun for hours. LBE Unlimited manufactures these kits domestically, so you're getting a quality, made-in-the-USA component that plays well with standard AR-15 platforms.
This is a complete kit, so you're not hunting down parts separately. Everything you need to finish your lower receiver—buffer tube, carbine recoil spring, standard carbine buffer, receiver end plate, and castle nut—comes in the box. It's mil-spec dimensioned, meaning it integrates cleanly with standard AR uppers and lowers. If you're assembling an AR pistol and need a reliable, legal receiver extension that actually performs, this is the straightforward choice.
| Brand | LBE Unlimited |
| Product Type | AR Pistol Buffer Tube Kit |
| Finish | Black |
| Includes | Pistol buffer tube, carbine recoil spring, standard carbine buffer, receiver end plate, castle nut, foam end cap |
| Compatibility | AR-15 platform (lower receiver) |
| Specification | Mil-spec |
Yes. This kit has no provision to mount a buttstock, which is the defining feature of a compliant AR pistol platform. Always verify your local and federal regulations, but this design is built with that legal distinction in mind.
Yes, it's mil-spec dimensioned and designed for standard AR-15 platform lower receivers. It integrates with uppers the same way a traditional receiver extension does.
Everything you need to complete the receiver extension: the pistol buffer tube itself, a carbine recoil spring, a standard carbine buffer, receiver end plate, castle nut, and a foam end cap for the tail of the tube.
The foam cap covers the end of the buffer tube and provides cushioning for a more comfortable cheek weld when shooting. It's a functional comfort feature for extended range sessions or training.
SKU: 115669663 • Width: 6.4in • Height: 2.2in • Depth: 12.5in • Weight: 1oz