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You wouldn't have to take off the E-Blade totally, just the noid that is upfront on the frontblock, you can leave the frame though.

Depending on what type of Pump kit you want it can range from $40 to about $80. The more costy kits being worth it though because they are better made and usally provide a nicer pump stroke.

Companies that make Pump kits:
-WGP (No longer in production but still float around)
-CCM (Good quality kit, reccomended highly by many people)
-Vendetta (Newer company, but they produce 2 kits one copying off of the CCM kit and another off the WGP kit.)
-WWA (Another good quality kit depending on what model you get)

The process of converting it is just take off frontblock assembly and then slap the pump kit on and your done.

Thats for the pnuematics, thats all the noid upfront is for. All the trigger frame will be doing now is tripping the hammer causing the marker to shoot and not activating the pnuematics as well sense they will no longer be there. The pnuematics on a Cocker are only to cocker the marker hense the name Autococker, before the time of the Autococker, Budd Orr called his creation the Sniper, back when you had to manually c**k it by pump.