I've read that any Magpul product not made in the USA is for AirSoft and should never be used on real firearms. This ad claims that these sights are fine for firearm use and that they are manufactured outside the US to avoid US export laws.

http://www.ebay.com/itm/Magpul-Gen-2...item1c2f175294

So what do you folks say? Good buy, are will they melt all over my rail?