Since you're talking live fire versions also, are you aware of:
Knights Armament also makes a Micro T1 mount; the only live fire accessory discussion that I've ever seen devolve into an ascetics discussion

.
Daniels Defense also makes a mount, and the cost isn't so bad for the live fire version. It is not quick detach which saves weight and cost.
I don't know anyone who actually uses the
GG&G mount. Is it the flip up scope covers? Aimpoint is talking about extending the tube a bit to accept aftermarket scope covers, so the cloner's should follow suit shortly thereafter.
However, if you're looking for airsoft version, do yourself a favour and buy the
LaRue. (Lots of places sell airsoft versions, the link to LaRue tactical contains a video)