Apparently you can use the spring out of Vspec upgrade cylinder.... i haven't tried it but eh review I read stated the MP7 was averaging 307 fps, using .20s But you have to purchase, take apart and then cut down the spring to size and shape the last coil.... Don't know how hard it is but I may be getting it done to my MP7
JAYHAD: Commander - Airsoft Assassins
distributing plastic death one nerd at a time
JOC Age Verifier
Originally Posted by kos
I swear, I didn't find out about it till I got home from bangin' little miss rotten-crotch!