Spikes Tactical Carbine Length Gas Tube - Black Melonite - If you are looking for a high quality gas tube look no more. These are the same gas tubes that Spikes Tactical install on their ST-15 rifles and all of their complete upper receivers. Mil-Spec 304 stainless steel; Black Nitride Finish; Stainless Steel Roll Pin; - At Sportsman's Warehouse, we live for the thrill of the great outdoors. Whether you're hunting, fishing, camping, backpacking, or shooting, having the right gear is key to making every moment unforgettable. That's why we bring you only the highest quality, trusted brands-because your outdoor experiences deserve the best. From expert advice to quality gear and community events, Sportsman's Warehouse is more than a store-we're your partner on every journey. Come explore with us and experience the difference passion makes.