Airsoft L85 dovetail to RIS riser

I did this raiser to:
a) mount my RIS rede dot to that useless dovetail thingy
b) raise the red dot so I can aim it with my full face mask on
c) kill some time and have excuse not to talk to my wife for an entire evening

STEP is attached, Please don't try to make money off of it. It just won't happen. No-one's gonna pay for it. Really. I've tried.