The MKA 1919 AP is a 12GA shotgun with an all skeletonized aluminum lower. This shotgun incorporates all the same features as the MKA 1919 model, but with the added ability to interchange the factory grip for other AR pistol grips. Other features include ambidextrous safeties, enlarged magazine release, bolt release, left side charging handle for faster operation, a new slimmer upper receiver and forend with split rails. Lastly, its sights are fully adjustable and removable for optic use.