I know that a scope will "see around" a front sight assembly, but I've never witnessed first hand how well this is achieved. Is the field of view obstructed at all? If so, how bad is it? I've been wanting a full rail over a low-profile gas block in order to avoid the FSP, but if I don't really need to get such an upper, then I may avoid it. Opinions? Thanks! (And, of course, pictures are always welcomed!) Wanna kill these ads? We can help!