Ergonomic modular pistol grip for Remington 870 shotguns. - Rugged one piece design. - Correct angle for best recoil control and quick sight picture recovery. - Textured for secure grip when wet. - Allows attachment of any M4-compatible buffer tube for mounting M4 stocks. - Storage compartments in grip. - Interfaces with the UAS or AGR tactical buttstock systems. - MIL-SPEC reinforced polymer composite.