Guntec AR-15 Gas Tube Features The Guntec AR-15 Gas Tube is machined from 304 stainless steel a material chosen for its ability to withstand the extreme heat and pressure cycling that a gas tube experiences with every round fired. Measuring 6.625 inches the tube is sized specifically for pistol length gas systems which are common on short barreled AR-15 pistols and compact carbines. Using the correct length gas tube is essential to reliable cycling since a tube that is too long or too short can cause timing issues with the bolt carrier group. Stainless steel also resists the corrosion and carbon buildup that can eventually cause a gas tube to fail. As a direct fit replacement part this gas tube installs into the gas block and receiver just like the factory component it replaces requiring no special tools beyond what is already needed for a gas tube swap. Replacing a bent cracked or worn gas tube restores proper gas flow to the bolt carrier group which keeps the rifle running reliably through hard use. Because the tube is stainless rather than a cheaper plated steel it holds up better over the long service life of a pistol length AR build. For any builder or owner replacing a damaged gas tube the Guntec stainless pistol length tube is a dependable option for sale at GrabAGun. Guntec AR-15 Gas Tube Specifications Manufacturer: Guntec Model: AR-15 Gas Tube Material: 304 Stainless Steel Size: Pistol Length 6.625 Compatible Hosts: AR-15 Available At: GrabAGun