HFC Mac 11 hop up problem - PARTS

[macfreek]

well today i took apart my mac 11 after the hop up after the little wrench was being weird. i look in the barrel and see the rubber that goes up and down in the hop up screw hole. so i look down there while i put my wrench where the screw is supposed to be.... my wrench goes through the hole completely... i am pretty sure i need anew hop up screw because i cant find mine... i cannot find a hfc mac 11 diagram on the web so if you know the part # and/or where i can get it, that would help.. thx (its my only gun and i hava huge war coming up)

[macfreek]

UPDATE:
i was thinking yesterday about what i could use to replace that screw (i found out its called a 'grub screw'). i remembered that my rc car has a wing that used some type of small screw. i took the screw off the wing, and used the wrench to put it in the hole.... it fit! yay. okay so i don't want to loose another screw so i need something to put around the threds to keep it in... will white plumbers tape work?

ps here is a link where you can buy the part that i am using... i am sure it is available other places
http://wondertrail.com/RC-Models-Mod.../tx2615pa.html

[Styrak]

Uh, what about the actual hopup rubber? It doesn't just use a screw.

[macfreek]

yes it only uses one screw. i put the link there to show where the parts could be bought. the screw is the right size, but it screws in and out easly, i just need to figure out what to put in there.