Steiner MPSThis red dot uses the Aimpoint Acro footprint standard. To install this red dot sight to an optics ready pistol, you need to have compatible plate from this category: optics ready plates with Aimpoint Acro footprint With the new MPS (Micro Pistol Sight), Steiner combines battle tested durability and extreme robustness on a pistol red dot. The MPS is designed to withstand the toughest demands of law enforcement and competitive shooters while providing