PTW electronics have been rated for 15 volts since Gen 4, or about 5 years now. I would assume that since the architecture and programming of the FCC electronics is the same as Systema, then they woild be rated for 15 volts as well.
Age verifier Northern Alberta
Democracy is two wolves and a sheep discussing what's for dinner.
Freedom is the wolves limping away while the sheep reloads.
Never confuse freedom with democracy.