Strike Industries manufactures the essential parts of you AR with high quality and precision at the best price. A Stainless Steel gas tube is the perfect upgrade to match a standard or custom AR build. The PISTOL Length Gas Tube is 6 3/4″ each set comes with a roll pin. Each roll pin is slightly over sized to accommodate most gas blocks and can be modified to fit smaller gas blocks. The look and feel of this gas tube cannot be matched. It’s a must have!