A gun stability plate assembly includes a widened body that attaches to the fore-end of a stock or chassis of a gun by means of a clamping device. The assembly includes a main body, a clamp assembly, and a track. The clamp assembly is in communication with the main body and is configured to translate adjacent an upper surface of the main body. A rotating knob regulates operation of the clamp by rotating about an axis. The axis of the knob is coplanar with a central plane of the main body. The track is formed into the main body and configured to seat the clamp. The track is recessed into the main body. An accessory aperture is located within the main body and configured to permit attachment of one or more accessories.