5550 bfsiii trigger for sig sauer mpx - OpticsPlanet Exclusive Franklin Armory BFSIII AR-C1 Trigger - Binary Firing System for AR Platforms

Purchased and installed this binary trigger in my MPX 9mm sub. Also installed magazine extenders to increase magazine capacity from 30 to 40 rounds. Trigger works as marketed. A magazine can be emptied in about 6 seconds. It takes time to learn the trigger's benefits and limitations. Now that we've had our fun, the weapon is stored for home self-defense. I would recommend it for those who are serious about protection of family and property.