I've given up on the opens - that flip up rearsight just isn't working for me... I'm fine with the sights on the old standards, and my club airsporter, but not these.. so what scope wouldn't look too out of place, that I can actually shoot with ? I have one of those slide mount BSA 3-7x20 (IIRC) and it's a bit crap - but may still be better than the opens I guess !