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The RIS III Rail Interface System from Daniel Defense builds on the design of the RIS II rail which has been used by U.S. Special Operations Command since 2006. However, the RIS III reduces weight and adds versatility by utilizing M-LOK attachment. The result is a military-grade rail that gives you a proven free-float barrel design, durable aircraft-grade aluminum construction, an uninterrupted upper rail platform with Mil-Spec 1913 rails, seven M-LOK attachment points along the handguard, and integral QD swivel attachment points on both sides. With this rock-solid rail, you can securely attach accessories using the popular M-LOK attachment system.

Features include a free-floating barrel design for increased accuracy, M-LOK attachment on seven surfaces along the length of the handguard, aircraft-grade 6061-T6 aluminum construction, a battle-tested six-bolt bolt-up system that securely attaches the handguard to the upper receiver, and grade 8 military specification fasteners. The upper rail platform is uninterrupted, and there are integral QD swivel attachment points with limited travel. The RIS III comes in a Mil-Spec Type III hard coat anodized finish (FDE or Black), and it is backward compatible with RIS II bolt-up system. This compatibility allows you to use the same barrel nut and bolt-up plate. Additionally, the RIS III upper rail is fully compatible with RIS II lower rail, enabling M-LOK attachment on the upper and Picatinny attachment on the lower.