Mounts right to your Picatinny rail
Offers a compact vertical grip
Installs and removes with no tools
Rubberized front and back grip
Dual removable pressure switch mounts
The MVG Short Forearm Vertical Grip fits your M4's Picatinny rail, giving you a compact vertical forward grip and allowing you to take a comfortable fighting stance. No tools required to install or remove. Non-slip grip surface. Rubberized front and back for better control. Incorporates a no-tool screw cap for storage compartment. Dual removable pressure switch mounts. Lifetime warranty.