Crosman made 4 versions of the model 66 AIR RIFLE it's not a gun.See this link for the manual and parts list http://www.crosman.com/cs/manuals/crosman-rifles
gun shows, gun shops, want ads
Gun show, want ad, gun shop
You need to find a gunsmith. --------------Correct answer-----------Gunsmith's don't usually work on air guns Air gun repairmen do.----------------- Crosman has all their air gun /rifle manuals online. the model 66 was made in 4 different variations. See the link below and you will find your model 66 about 1/2 way down the list. The list has both the owners manual and parts diagram. See the link Below
Try local gun shops, gun shows,e-gunparts.com, want ads.
Try e-gunparts.com, gun shops, gun shows, want ads.
Try egunparts ----------------------NEW ANSWER------------------ See the link "PPK/S" below for the complete diagram.
I am not sure about the diagram,but I would check at numrich gun parts corp. first for the parts you need.
I would suggest doing a search on Air gun repair and locate someone near you to fix it but. See the attached link below for the diagram of the air gun FEG-01
I'd contact Daisy directly and put in a request for one.
find marks on the cat, find the ammo, or see if he owns a gun
Your best bet is to contact Daisy air gun co and ask for a diagram. See the link below.
You can find a parts diagram on the CROSMAN homepage. Click on "Download a manual" (at the bottom of the page ) There you will find an owners manual and parts diagram for the model 66. Parts are still available through Crosman. See the related link.