3310 Optical, Omron switches, about 105g, very similar to the SteelSeries Rival 300, developed by Emil "HeatoN" Christensen. It's a very good mouse, but it's going to be hard to choose between the two... hopefully something in the review makes the decision for you.
Here's some more information: http://xtrfy.com/product/xg-m3-heaton/
At the time of the review, it's not available on Amazon, but you can search the main sites using the links below...
Amazon USA: http://amzn.to/2gF60Qm
Amazon UK: http://amzn.to/2gxd14V
_____________________________________
MY LINKS
Website: http://www.rocketjumpninja.com
Mouse Recommendations Direct Link: http://www.rocketjumpninja.com/find-a-mouse/
Twitter: @RocketJumpNinja
Facebook: https://www.facebook.com/rocketjumpninja
My Books: http://www.theheroesfall.com
My Music: https://soundcloud.com/zyism
My PC Build (Rocket Jump Ninja 1070 Gaming PC): https://www.mwave.com.au/product/rocket-jump-ninja-1070-gaming-pc-ab87577