Designed at the request of the United States Special Operations Command (SOCOM) for the SOPMOD II program, the Daniel Defense M4A1 RIS II 12.25″ Handguard is crafted of precision CNC-machined 6061-T6 aluminum with a corrosion-resistant hard-coat anodized finish for exceptional strength and lasting durability in a lightweight and easily maneuverable package. Weighing just 17.7 oz, this rail features an uninterrupted upper rail platform with Mil-Spec 1913 Picatinny rails and a Mil-Spec Type III hard coat anodized finish.
The 2-piece design allows for the attachment of an M203 grenade launcher when the lower rail section is removed, while the combat-proven 6-bolt Bolt-Up system securely attaches the handguard to the upper receiver with Grade 8 military specification fasteners for superior rigidity. The free-float design maximizes your rifle barrel’s accuracy potential, and the heavily vented profile facilitates rapid cooling, even under sustained rapid-fire conditions. The Daniel Defense RIS II is to be used in conjunction with the MK12 Low Profile Gas Block.
The uninterrupted upper rail platform and Mil-Spec Picatinny rails with markings provide ample attachment space for weapon-mounted accessories, such as weapon lights and laser sights. Built to military specifications and battle-tested in the field, the RIS II M4A1 delivers the precision and durability demanded by professional operators and serious enthusiasts alike.





