We are proud to introduce our newest forward grips. The new Thunder Forward Grips are comfortable with a designed pattern for increased control. All four fingers will fit comfortably around the contoured shape of New Thunder Three + 1 Forward Grip with its 3.75 grip length. - Features a plugged storage compartment and a finned upper grip area. Utilizes our screw down clamp locking system for secure mounting to any Picatinny rail. Made in Israel. - Specifications and Features: - 3.75 long - Integrated storage - Polymer construction