I haven't done business with them yet so can't exactly recommend them, but these guys appear to be importing them:

www.centerfiresystems.com

K-Var had some a while back also.

'Four legs good, two legs baaaad."
----------------------------------------------
"Jimmy, some of it's magic,
Some of it's tragic,
But I had a good life all the way."
(Jimmy Buffett)

SotG