BATTLEGRIP Model BGV-MK46 foregrip was designed for use on the M249 / MK-46 family of weapon systems. This heavy, belt-fed SAW is called upon to operate in hostile environments, often with CQB tactics that punish rail mounted foregrips. Dual Locking Bar Mounting System Integrated Pressure Switch Pocket Waterproof Internal Storage Compartment Length: 4 7/8" Weight: 3.68 oz Inside Diameter of Switch Pocket: 0.65"