Ok, you aked for it... $5 trigger job...
Make sure it's unloaded and tear the gun down per the owners manual.
Use anythin you can poke with to insert where arrow 1 is pointing. A paperclip works well.
Pull all the guts out.
Support the lug on the striker on the endge of your work surface and hold the spring immediatley bellow the rim of the plastic keepers as indicated by arrow 2.
Push down firmly and remove one plastic keeper than another. Be carefull to not twist the striker as it could cause the lug to slip off the work surface and use your pring to propel small black pieces of plastic into the deepest, darkest, most remote corners of your room.
Reassemble with the new spring and function check the gun buy, while unloaded, cocking, squezing the trigger and llistening for the click. While holding the trigger, recocking, and then releasing and squezing the trigger again. Take it to the range and put about 10 boxes of ammo through it to make sure it still fires reliably. That's about it.