Hi looking for some a 5 paper to print flyers needs to be 120/160 gsm semi gloss or gloss
Cheers Ali

Any of the large stationers stock it.

Google is your friend

Cheap as chips

http://www.ink2paper.com/sub-category/Gloss+Photo+Paper/A5/?source=gl_adwords&gclid=CLe75Zjz5qcCFQoY4QodaQ-Ubg

or if you're stuck, get some A4 paper of the same GSM and cut in half...