Hi guys, I want to get one of these for my M-1A but I'm having trouble locating a dealer. Who sells them for the best price? I saw a couple on Ebay but they didn't say if they fit 1913 (picatinny) rails or not. The best price I saw there was $ 239.99. Is that a good price? Is there a better light/ laser combo than the M6X? I plan to use it for HD. Thanks.