The PCO-m (micro pistol optic) is the powerhouse little brother in our red-dot line up. It takes all the goodness of our full size red dots: the 3 MOA dot, the 4 hour stand by, and the shake awake feature, and packs them into an RMSc footprint that makes it compatible with most sub-compact pistols. With a side mounted battery tray, switching out the 1632 battery once every 20,000 hours is a breeze. If you rely on a small frame pistol day in and day out, you need the PCO-m to give you the advantage when it matters most