Jaeger Precision does a lengthy review of the Secutor Ludus CO2 Blowback Pistol in this video. Apart from being CO2 powered, it has an SPQR grip included as well as a base that can be removed and replaced by a RMR platform and high sights to mount a RMR for those who want to install a micro sight... "Taking a look at the latest release from Secutor, The Ludus Hi-Capa."