Used Vintage Electro Harmonix Big Muff Pi Russian Army Green Fuzz Pedal 40051-S000105995,Electro-Harmonix Big Muff Pi V7 (Green Russian) | Reverb, Effects | Rock n Roll Vintage Guitars" alt="Electro-Harmonix Sovtek " Russian" Big Muff Pi Green > Effects | Rock n Roll Vintage Guitars" />Electro-Harmonix Sovtek ,'90s Electro-Harmonix / Sovtek Big Muff Pi V7 ,Electro-Harmonix Big Muff Pi V7 (Green Russian) | Reverb,