mmmhm had the thing for 1 year and now it is finally upgraded to perfection
List of upgrades
Mad Bull black python v2 6.03mm barrel 509mm length
Systema All Helical Gears
Systema Polycarbonate piston head
Area1000 Aluminum piston head
Systema 6mm oiless metal bushings.
Mad Bull Shark Accelerator Hop up bucking
Guarder v2 spring guide with bearing
Systema m120 irregular pitch spring
pics of my ugly gun coming shortly