Nope, sorry. What we don't want is someone trying to do the mod without having the mag in hand to test fit as they do it. This prevents us from getting calls from people that have messed it up and are now blaming us.
The mod is to be done by a qualified gunsmith or Red Seal machinist only. It is incredibly simple to do if you have a milling machine and a sharp end mill. If you plan on using a Dremel in your work shop then I will save you the headache now - PLEASE DON'T. It will turn out badly, I guarantee that.
We offer the service to modify it for you, the cost is $65 plus tax and shipping. Some shops that sell the mags also have milling machines and I'm sure will be offering the service so you won't need to ship it and pay the extra expense. I will be posting the shops that have agreed to carry the mags soon.