Daniel Defense RIS III Features Built from aircraft-grade aluminum and finished in Type III hardcoat anodized black this rail system blends strength with corrosion resistance. The continuous 1913 Picatinny top rail allows for seamless optic and BUIS mounting while the M-LOK attachment system provides versatile accessory placement along the 3 6 and 9 o'clock positions. Integrated sling swivel sockets offer secure QD sling attachment points without additional hardware. Thanks to its free-floating barrel design the RIS III enhances accuracy by minimizing external pressure on the barrel. Ideal for suppressor-ready setups precision builds or high-duty rifles the 13 RIS III balances reach weight and rigidity for optimal performance in any environment. Daniel Defense RIS III Rail Specifications Manufacturer: Daniel Defense Model: RIS III M-LOK Rail Type: Accessory - Rail System Item Group: Rifle Accessories Overall Length: 13 Finish: Black Finish Type: Applied Anodized Finish Weight: 16.38 oz Shipping Weight: 1.4 lbs Mounting Type: Free-Floating Top Rail: Continuous 1913 Picatinny Attachment System: M-LOK Sling Mounts: Integrated QD Sling Swivel Attachment Points Compatibility: MIL-SPEC AR-15 Upper Receivers