Product Description The Fortis Manufacturing REV II is an extremely lightweight yet robust free-float handguard rail designed for AR-15 platforms. Built with a strong one-piece body, it minimizes weight while maintaining rigidity for hard use. M-LOK slots at the 3, 6, and 9 oclock positions provide flexible accessory mounting, while the continuous Picatinny top rail gives you a solid, uninterrupted surface for optics and sighting accessories. The REV II uses a unique mounting system that attaches to a standard AR-15 barrel nut (not included) and includes anti-rotation tabs for added stability. It is compatible with both direct impingement and piston operating systems. Product Highlights Free-float AR-15 handguard for improved accuracy potential and consistent accessory alignment M-LOK mounting at 3/6/9 oclock positions for modular setup and reduced bulk Continuous Picatinny top rail for optics, iron sights, and forward-mounted accessories Anti-rotation tabs help keep the rail stable under recoil and hard handling Mounts to a standard AR-15 barrel nut for straightforward installation (barrel nut not included) Specs Brand: Fortis Manufacturing, Inc. Model: REV II Type: Free-float handguard / rail system Platform Compatibility: AR-15 Mount Interface: M-LOK (3/6/9 oclock) Top Rail: Continuous Picatinny Overall Length: 6.7 in Inside Diameter: 1.340 in Material: 6061-T6 aluminum Finish: Mil-Spec Type III hard coat anodized Color: Black Operating System Compatibility: Direct impingement and piston Barrel Nut: Not included (uses standard AR-15 barrel nut) MPN: REV-II-7-ML UPC: 855476008100 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 products manufacturer.