Sorry, no.
If it is an injected mounded stock cannot be milled out to accept the M5 guard, there is simply not enough material in the stock. If you look inside it is pretty much hollow except for a couple of crucial points. We can’t do Houge overmoulded stocks either. We can do any Fiberglass/Kevlar stocks, Manners, McMillan, Bell & Carlson and HS Precision stocks or any stock of similar design and we can do wood stocks.