Ive got a Hawke Frontier 3-9x40 on my 95,very decent scope. In fact I've just managed to buy another, very clear Jap lenses in these. Only downside is they are from the 90,s I believe and don't see many around. I've also just acquired a Vortex Diamondback 2-7x35, not mounted it yet, but my god it looks very promising, looks a little beauty.
Edit Sorry scrap my advice, just seen you want 12x mag