Tacfire AR-15 A2 Style Buffer Tube w/Spring and Buffer Black. These AR15 Buffer Assemblies made by the experts at TacFire are the perfect way to replace a damaged stock system or install a 6 position or fixed stock. The Tacfire A2 Mil-Spec Buffer Tube Kit comes with buffer tube spring and buffer providing everything you need to upgrade your stock. Pick up this Tacfire A2 Buffer Tube Kit for AR today for a quality kit that's built to last and perform to the highest possible standards. Buffer color may differ from picture based on current production Specifications for Tacfire A2 Style Buffer Tube w/Spring and Buffer: Manufacturer: TacFire Condition: New Package Contents: Tacfire A2 Style Buffer Tube w/Spring and Buffer What firearm models does the manufacturer say Tacfire A2 Style Buffer Tube w/Spring and Buffer is compatible with? The manufacturer says that Tacfire A2 Style Buffer Tube w/Spring and Buffer is compatible with AR-15 AR-10Tacfire MAR110: AR-15 A2 Style Buffer Tube w/Spring and Buffer Black