Description
Phase 5 PBTCA is an AR-15 pistol buffer tube complete assembly designed for use with a pistol-length buffer system. It includes an enhanced buffer spring, a billet aluminum pistol buffer tube, a Mil-Spec end plate, a Mil-Spec castle nut, and a Mil-Spec carbine buffer. The NPVC-constructed foam pad is fitted to the buffer tube, and the lower slot is machined for Mil-Spec end plates and sling mounting accessories.
Key details
- Includes enhanced buffer spring, billet aluminum pistol buffer tube, and Mil-Spec end plate
- Comes with Mil-Spec castle nut and Mil-Spec carbine buffer
- NPVC-constructed buffer tube foam pad
- Lower slot machined for Mil-Spec end plates and sling mounting accessories
| Fits | AR-15 pistol buffer system |
|---|---|
| Part Type | Buffer tube complete assembly |
| Finish | Black |





