*The 22mm wide window makes Liberty about the same width as a double-stack 9mm Pistol slide*Liberty and Justice feature high battery life emitters, available as 3 MOA red dot reticles*. There is no need to go holster hunting or invest in an expensive custom holster setup. Liberty and Justice fit securely in all ALS series duty holsters, both optic and holster fully function as intended.Liberty and Justice are the 2nd generation Swampfox Optics open reflex sights optimized for every day concealed carry and law enforcement duty use. Featuring tough 7075 aluminum construction, Shake 'N Wake Illumination, improved battery life, and a more compact profile, these optics are ready for year-round use day after day.