I bought one back in May, mini review
here.
Gamed it twice since on a TM P90; it's held up fine so far, no lens hits yet (crossing fingers

) Battery still working after 3 hrs or so of on time. Holds its' zero fine, though a P90's the wrong test platform for that (no recoil); anyone get one of these on a GBB yet?
The included mount fits 20mm rails. I'm guessing, but it might fit a RS Docter mount if a slot is milled for the switch.
The dot is still bright and crisp, but I find it washes out against a bright background (though most red-dots do that); I'd love to see a green-dot version of this.