USED AT3 Tactical AR-15 Gas Tube Carbine Length Carbine Length GT-07. . Developed by using some of the very most strong and dependable substances around these AR Gas Tubes from AT3 Tactical provides you with a product that will give you numerous years of stability. AT3 Tactical has been generating high quality products for a number of years and the AT3 Tactical AR-15 Gas Tube is their manner of showing you just how much they care. At OpticsPlanet we ensure that it is our responsibility to receive the perfect product for your needs and showcasing the AT3 Tactical AR-15 Gas Tube is one thing that we're delighted to offer. Specifications for AT3 Tactical AR-15 Gas Tube: Manufacturer: AT3 Tactical Color: Black Finish: Natural Fabric/Material: Stainless Steel Gun Make: AR Platform Gun Model: AR-15 Caliber: 5.56x45mm NATO Features of AT3 Tactical AR-15 Gas Tube Distance to port: Pistol = 4 inches Carbine = 7 inches Mid = 9 inches Rifle = 12 inches Package Contents: AT3 Tactical AR-15 Gas Tube Roll Pins What firearm models does the manufacturer say AT3 Tactical AR-15 Gas Tube is compatible with? The manufacturer says that AT3 Tactical AR-15 Gas Tube is compatible with AR-15AT3 Tactical GT-07: AR-15 Gas Tube Carbine Length Carbine Length