Phase 5 Weapon Systems Inc AR-15 Pistol Buffer Tube Black Small. Each of these AR15 Lower Parts by Phase 5 Weapon Systems Inc are CNC-machined from 7075 T651 certified billet aluminum for a strong yet lightweight platform. The Phase 5 Weapon Systems Inc AR-15 Pistol PBT Buffer Tube is designed to fit a Mil-Spec carbine buffer and spring and the lower machined slot allows for maximum compatibility. This Phase 5 Weapon Systems Inc AR-15 Pistol Buffer Tube PBT-Comp End Plate and Foam Pad has a hard anodized Mil-Spec type III black finish which ensures incredible reliability against wear. When you need to upgrade your existing platform look no further than the Phase 5 Weapon Systems Inc AR-15 Pistol Buffer Tube PBT-Comp End Plate and Foam Pad. Specifications for Phase 5 Weapon Systems Inc AR-15 Pistol Buffer Tube: Manufacturer: Phase 5 Weapon Systems Inc Color: Black Finish: Anodized Fabric/Material: Aluminum Gun Make: AR Platform Gun Model: AR-15 Gun Type: Pistol Length: 7.4 in Diameter: 1.25 in Condition: New Buffer Tube Size: Mil-Spec Weight: 4.8 oz Package Contents: Phase 5 Weapon Systems Inc AR-15 Pistol Buffer Tube The Phase 5 Tactical AR-15 Pistol Buffer Tube PBT is a quality addition to the Phase 5 Weapon Systems Inc lineup. For more great deals on AR15 Buffer Tubes by Phase 5 Weapon Systems Inc please browse our Phase 5 Tactical Gun Parts page. What firearm models does the manufacturer say Phase 5 Weapon Systems Inc AR-15 Pistol Buffer Tube is compatible with? The manufacturer says that Phase 5 Weapon Systems Inc AR-15 Pistol Buffer Tube is compatible with AR-15Phase 5 Weapon Systems Inc PBT6061: AR-15 Pistol Buffer Tube Black Small