How to get a muzzle device on a non threaded barrel.

I have a Mak 90 with all the compliance parts. I would like to add a muzzle device.
What do I need to do to get one installed. Anyone here sell thread kits.
pat

If the barrel isn’t already threaded you will have to take it to a gunsmith to have the threads added.

Thanks I was hoping there would be somebody around here with a thread kit so I could do it myself.
Pat

Dinzag rents out kits. Really good guy to deal with.

Thanks how do I get a hold of him.
Pat

http://www.dinzagarms.com/index.html