Guntec USA AR-15 Mil-Spec Car Buffer Aluminum. The goal is to distribute excellent quality at an economical value. Specifications for Guntec USA AR-15 Mil-Spec Car Buffer: Manufacturer: Guntec USA Gun Make: AR Platform Gun Model: AR-15 Length: 3 in Features of Guntec USA AR-15 Mil-Spec Car Buffer Aluminum Body White Neoprene Head 1 Tungsten 2 Steel Weights Package Contents: Guntec USA AR-15 Mil-Spec Car Buffer What firearm models does the manufacturer say Guntec USA AR-15 Mil-Spec Car Buffer is compatible with? The manufacturer says that Guntec USA AR-15 Mil-Spec Car Buffer is compatible with AR-15Guntec USA CARBUF: AR-15 Mil-Spec Car Buffer Aluminum