Product DescriptionThe Fortis Switch MOD2 15.3-inch M-LOK rail system is designed to give AR-15 builders a streamlined, high-control handguard with improved airflow. By eliminating the full-length 12 oclock Picatinny section and replacing it with open vents, the Switch MOD2 reduces bulk while helping move heat away from the barrel during extended use. A short top section remains for back-up iron sights, and forward M-LOK sections provide flexible mounting options for accessories such as weapon lightsoften without needing additional offset mounts.Product Highlights 15.3-inch Switch MOD2 free-float style rail system with M-LOK accessory mounting Vented top design improves barrel airflow and helps reduce heat buildup during longer strings Smaller, streamlined profile improves weapon manipulation and modern support-hand grip comfort Short top section retained for back-up iron sight mounting Black finish and 1.34-inch internal diameter for practical clearance and a clean buildSpecs Brand Name: Fortis Manufacturing, Inc. Model/Series: Switch MOD2 Product Type: Rail System / Handguard Platform Compatibility: AR-15 Length: 15.3 in Mounting Interface: M-LOK Internal Diameter: 1.34 in Color/Finish: Black Installation Note: Spanner wrench required to torque barrel nut to spec (not included) Manufacturer Part Number: AR15-SWITCH-M2-15-ML UPC: 855476008193Disclaimer: 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 products manufacturer.