Thank you both for your suggestions, I appreciate the replies. I will have a look at what groups might be interested. It's just a simple Glock, i *think* 17, i'm no expert on these things but i doubt many re-enactment groups would be interested - will have a look nonetheless, it's worth a try.
I dont mind paying a small fee for an advert, it's just gunstar for example want a fee every month to post it, and something tells me it won't be a quick sale, seems a rip off to pay £5 per month and maybe it takes months to sell, if at all.
Anyway thanks for the tips 🙂