I am currently seeking a scope for my CZ452 Lux. I want a fixed power scope, 4x, adjustable objective (if posible) or at least parallax setting to 50-60m, click-adjustable knobs(not friction, which rules out Leupold's FX-1 rimfire). Good optical quality and clarity is a must as it will see use at dusk. Also, the objective shouldn't be very large because it would no fit over the large rear iron sights this rifle has. Up to now the closest I have found is the Nikon 4x32 ProStaff rimfire. Any comments on that scope? It retails for around $110 which seems rather low priced...poor quality? Any other scopes I should look at?