Sniper AR .223 Steel Gas Tube w/Roll Pin Pistol Length 6.75 in Stainless small. 223/5.56/.308 Stainless Steel Gas Tube With Roll Pin - Mid Length/Carbine Length/Pistol Length Sometimes when building or upgrading you will want to consider or it might even be necessary to replace your original gas tube. This is a quality stainless steel replacement for your .223/5.56/.308 with correct dimensions and bends. Easy install. Comes with roll pin. Specifications for Sniper AR Steel Gas Tubes with Roll Pins: Manufacturer: Sniper Color: Stainless Fabric/Material: Stainless Steel Gun Model: AR-15 Caliber: 5.56x45mm NATO .308 Winchester .223 Remington Package Contents: Sniper AR.223 Steel Gas Tube What firearm models does the manufacturer say Sniper AR Steel Gas Tubes with Roll Pins is compatible with? The manufacturer says that Sniper AR Steel Gas Tubes with Roll Pins is compatible with AR-15Sniper GT01: AR .223 Steel Gas Tube w/Roll Pin Pistol Length 6.75 in Stainless small