The Low-Pro Stubby Vertical Grip, a great alternative to a full length Vertical Grip. This grip is Low Profile, measuring at 2-3/4″ overall length, and works very well when shooting from the prone position. The hollowed out inside helps in weight reduction and can double as a storage compartment. It is made to mount to the MIL-STD-1913 picatinny rail system. No tools are required to attach or detach from rail system. Machined from a solid billet of 6061-T6 Aluminum, and finished per Military Specification MIL-A-8625, Black Anodized finish. Made in the USA.