How does the spacer exactly work?
I have an mp5 with apparently a weaver rail (although I always thought it was picatinny). I want to change the rmr into aimpoint h or the t series? Will it fit?
Is it true if you don't need night vision or magnification the h1 is good enough?
Also I am looking for 2moa only.
Do I need the spacer? Ideally I want to achieve cowitness?