Moved to appropriate area.
Now, seeing as you've been on the forum for close to two years, you should know how to find the answer to this by now. I did a search for "mach1airsoft, reviews". Took all of 0.04 seconds.
http://www.airsoftcanada.com/search....archid=2739216
Short story, yes they're legit. They're a retailer here on ASC, but you have to be AV'd to view.