Is anyone familiar with the Tokyo Marui M9? I found the website for this company . . . but it's all Japanese to me! (literally)

The item I have is stamped "TM Tactical Master Q.L.S Shinden" made in China and the grips look like Beretta's grips with the three arrow logo and everything. I'm not positive it's a Tokyo Marui but what I've found so far leads me to believe it is. I need to know how it operates - it appears the BBs and gas reservoir are located in the removable magazine, which of course, I don't have.

If anyone is familiar with this or can get their hands on a manual I would greatly appreciate the info!
Thanks!!! Lisa