C-hing, this is my m3 super 90 with mosquito R.I.S ,which around 600-700 dollars from (west-tokyo), but not good for cocking the handle with ris cover beause it is very slide
, if you cocking with stick should be ok, so i don't suggest you to buy this as you want the out look likes surefire handguard. And i don't think G&X mp5 ris fit for m3.