Im believe the website would be
www.bomber-airsoft.com
However going to the link shows nothing but spam adds, however if you actually take notice of the sentence at the very top of the page it states that the domain has expired and is awaiting renewal.
Then again that may not be their website at all, maybe its some insane silly name with a buncha random numbers and letters, who knows.
I purchasd the King Arms folding battle set and I have no issues with it. You can purchase the complete set in Canada if Airsoft parts has them in stock for cheaper than you could purchasing both the front and rear sight seperately and having them shipped to you from overseas. Ive had these sights for well over a year and the finish on them has stayed very well, the detail of the lettering has hung on very well for something that looks like it was simply stamped on.
However I do enjoy the look of the trades on the Noveske style bomber flipups.
http://www.tokyo-model.com.hk/ecshop/goods.php?id=5006