FORTIS REV™ II FREE FLOAT RAIL SYSTEM - 12" MLOK UNIP Muzzle Velocity: Varies according to

Muzzle Velocity: Varies according to BB shower grenade

PATTERN: MULTICAM

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FORTIS REV™ II FREE FLOAT RAIL SYSTEM - 12" MLOK UNIP Muzzle Velocity: Varies according toThe Fortis REV II rail system is rugged, lightweight, free float rail system for most airsoft M4 guns setups. The REV II rail is installed with a standard barrel nut and offers 12 inches of continuous 1913 mil spec picatinny rail along the top of the rifle that feels and looks like a completely monolithic (one piece) upper. Anti rotation tabs integrated into the inside diameter of the rail system ensures that the rail stays locked in position and