The M4A1 RIS II system by SOCOM Gear is a licensed replica of the Daniel Defense rail system developed for Block II of the SOPMOD project. This free float rail locks solidly in place and has a detachable lower to allow a hard-mount grenade launcher.
Since SOCOM Gear's first licensed Daniel Defense rail was developed for use on airsoft replicas, SOCOM Gear has continued to produce quality, fully licensed rail systems for use on airsoft rifles. The SOCOM Gear Daniel Defense rails are modeled after the highly successful Daniel Defense rail systems in use on many M4 rifles; this replica is of the M4A1 RIS II, a 12 inch free float rail designed for the SOPMOD program.
This replica is constructed of anodized CNC aluminum and features full Daniel Defense Inc markings. The flat-black finish is an ideal non-glare coating. This rail system will fit on most airsoft M4 and M16 AEGs and GBB rifles.