A simple set up of mine...
Boyi mod 1 SPR
Acog
sp 150, systema spring guide with bearing systema pistonhead with bearing, type 0 cylinder, 7mm metal bushings, src cylinder head double o ring, element 300% gears, deepfire full teeth piston body, boyi reinforced gearbox, eg 1000 motor, mad bull 6.03 tight barrel, CA airseal nozzle, guarder hop rubber, 11.1v lipo, I love this rifle, excellent rof and fps =)


twin sister, same as above, except for the spring, using only a PDI 190


My kid's m4, shortstroked, sp 110, metal bushings, systema spring guide with bearing, systema duracon piston head with bearing, forgot the other stuff