This is the uber-powerful RAIL Super Fuzz & Distortion from Pettyjohn Electronics.
https://www.pettyjohnelectronics.com/rail
The RAIL is a different take on your typical fuzz pedal – it doesn't use diodes or transistors, but instead slams the voltage rails of the pedal with crazy amounts of gain. In practice this ends up just sounding extremely powerful and huge – and doesn't succumb to the pitfalls of classic / vintage fuzz pedals (buffer issues / stacking issues). You can get everything from sparkly dirt to full-on gated synth-like fuzz with this pedal! I especially like the 8-way drive control. That stepped-switch take on the gain circuit is a really practical way to dial in a sound.
Thanks to Pettyjohn for sending this out for the demo!
Guitar:
2011 Fender 60th Anniversary Modern Thinline Telecaster
Amps:
Jackson Newcastle 30 + 1x12 closed-back cab (Celestion Gold 50w) - Royer R121
Benson Monarch + Benson 2x10 open-back cab (2x Celestion Gold 40w) - Avantone CR14