Looking at getting started with Mini Rifle at Headley Park RPC once they are accepting new non-FAC holders again.

I will probably get the S&W 15-22, but I am considering a Kriss DMK or maybe the Zaviar if in my price range.

In the meantime I have been looking at red dot sights. I definitely do not have the budget for an Aimpoint, at least not at the same time as splashing out on a rifle, cabinet and safety gear. I have seen reviews for budget red dots on YouTube but most are not available in the UK. Does anyone have any recommendations that are available here?