The Bushnell MPO Pro-S is the slim-subcompact variant - RMSc / J-Point footprint - with a circle-dot reticle. Designed for slim carry pistols like the Glock 43X / 48, Sig P365, and S&W Shield Plus. The circle-dot reticle gives you both a fine center dot and a surrounding circle for fast acquisition. Specs: Reticle: Circle + dot Footprint: RMSc / J-Point (Shield RMSc-compatible) Housing: aluminum Illumination: multi-step brightness Battery: CR2032 Use case: Subcompact concealed carry where you want optic capability on a slim platform without a premium-tier price.