Regarding the sights, my scandium 360 kit gun (.357) came with a similar fiberoptic front sight. I also was concerned about it, but now that I've examined and used it, I think it is a sturdy and very usable setup. The fiberoptic insert seems very solid. When you look at it at first, it appears to be an orange fiberoptic strand held between two posts, but in reality, the whole thing is encased in solid transparent plastic that protects it pretty well. Also, it is surrounded by metal at both ends and on the bottom, so even if the plastic insert were to somehow get knocked loose, the metal that holds it would still make a servicable sight.
Also, mine came with a wide "V" rear notch that I didn't like when I first saw it. Now that I've used it some, I'm very happy with it. I'm sure it isn't quite as precise as a traditonal square notch rear sight, but it is very quick to put the bright orange dot in the "V" - I find it an excellent arrangement for this type of pistol.
Doug