My gunsmith attended the Cactus Shoot down in Phoenix earlier this year and heard that Lawton Machine had gone out of business. I don't know if that is true or not as their web site is still active. I've ordered a couple of actions from them in the past and have their number on invoices.
Here is what I have: 406-683-2388.
Last time I called was approx. 2 years back so not sure if this number is still valid but you can give it a try.