I have an almost brand new red dot by NCSTAR specifically made for the MP5 or variant of one. Reason I say almost brand new is because I mounted it for 2 weeks and worked great co-witnessing. But then I came across a GSG rail and used that with an eotech. This can be yours for $25 or best offer shipped anywhere in the continental 48. Great little dot for the money, cant go wrong if you cant afford something better. First I take it will recieve it, just im me to let me know as well, and I will give you the information to send me a money order. Thanks!