This Six-piece rubberized interchangeable pistol grip lets you customize your M16's or AR15's grip to fit any hand size for maximum comfort and control. Changeable finger grooves and palm swell allow for an increased powerful grip. Easily interchangeable front and rear rubberized grip inserts mount securely in place. Mottled surface minimizes risk of slippage when wet. Capped storage space for small items. No gunsmithing required to install or remove. Lifetime warranty.