I'm currently looking for somewhere to buy a tiny spring (since I can't find the one which escaped when I was taking my M4 to pieces. Size is 2mm x 13mm x 0.13mm. I'm thinking that a radio controlled car shop might be a good place to look. Any suggestions for places in Aki, Shinjuku or Shibuya?
did you look at ball point pen..
Did you go to Tokyu Hands Shibuya?
Which point of your M4 do you use it? Does TM have it?
I think TM will be able to sell some parts.
I tried Tokyu Hands in Shibuya before posting. The smallest they go is 3mm diameter. Echigoya didn't have anything either unfortunately. Ball point spring might be an option
@ Ron - Looks good, thanks, I'll give them a try this weekend.