a little magic....Lee Kinnely (aka Punisher) style:
http://airsoldier.com/~punisher/pneu1.jpg
http://airsoldier.com/~punisher/pneu2.jpg
http://airsoldier.com/~punisher/pneu4.jpg
"Your eyes are not deceiving you - this Automag has cocker pneumatics attached. The trigger is now 100% pneumatic - an internal ram toggles the sear. Nearly impervious to short-stroking and blazing fast (a Retro valve is strongly recommended with this mod)."
-Punisher's Customs