How effective is the Evolution Gear Fast Scope Switch for use in airsoft? ASG Olsztyn got one to install and test. The LPVOs offer a rapid zooming and magnification adjustment system, along with a swift scope switch. This system is compatible with a variety of LPVOs, including but not limited to brands like Vortex, Nightforce, Schmidt Bender, Sig Sauer, and EOTECH.