Product Description The Spike&';s Tactical Rifle-Length Gas Tube is a premium replacement/upgrade gas tube for AR-15 rifle-length gas systems. Built from Mil-Spec 304 stainless steel and Melonite (nitride) coated, it is designed to deliver excellent heat resistance, corrosion resistance, and reduced reflection for hard-use builds. It is compatible with common .223/5.56 uppers and is also well-suited for 5.45 uppers where corrosive surplus ammunition may be used. A split roll pin is included for installation. Product Highlights Mil-Spec 304 stainless steel construction for durable AR-15 gas system performance Melonite/nitride coating enhances heat and corrosion resistance while reducing glare Rifle-length gas tube format for rifle-length AR-15 gas system setups Includes split/stainless steel roll pin for easier installation Great option for .223/5.56 and 5.45 builds, including use with corrosive surplus ammo Specs Brand: Spikes Product Type: Rifle-Length Gas Tube Compatibility: AR-15 rifle-length gas systems Material: 304 Stainless Steel (Mil-Spec) Finish/Coating: Melonite (Nitride) Color: Black Overall Length: 15.125 in Weight: 0.96 oz Included: Split roll pin MPN: SUGT0M4 UPC: 855319005921 Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.