TangoDown BGVMK46FDE: The vertical foregrip that started it all. The TangoDown vertical foregrip has become the standard for US Military small arms, offering utility levels previously unseen in this product type. This model features an incredibly rugged ergonomic design that is complemented by premium heat and impact-modified injection molded polymers for long mission life. This model is designed to fit most Picitanny rail sections and is compatible with Surefire Pressure Pads. Features: a Dual Locking Bar Mounting System compatible with authentic MIL-STD 1913 rails. a Integrated pressure switch pocket for Surefire brand products with cover. a Waterproof internal storage compartment with an o-ringed screw cap. a Grip Chips supplied. NOTE: Vertical foregrip only, no other items included.