I agree mostly with fourninefoxtrot.
I have 3 boys of my own but they are a bit younger than your boys. I plan to assemble a set of 1911 with caspian parts. Caspian allows alot of customization including custom serial numbers. You can even get damascus if you are really wanting something exotic looking.
I'd really like to get some basic pistolsmithing skills so that I can assemble the 1911 myself. I think that a nice pistol is a great gift but making it myself will be the icing on the cake. You could surely do the same with 16 years advanced notice.
http://www.caspianarms.com/
I have 3 boys of my own but they are a bit younger than your boys. I plan to assemble a set of 1911 with caspian parts. Caspian allows alot of customization including custom serial numbers. You can even get damascus if you are really wanting something exotic looking.
I'd really like to get some basic pistolsmithing skills so that I can assemble the 1911 myself. I think that a nice pistol is a great gift but making it myself will be the icing on the cake. You could surely do the same with 16 years advanced notice.
http://www.caspianarms.com/