New ones are $3-500 depending on what model. The old AW234 was Mac's design and shared most IR231 components. There are a few parts not available for those old guns. The AW434 434A, and 434B were a great guns but most parts are not available for those. The 434m is a good gun and most parts are available. The later 4400's are good guns and most parts are available for those. All the guns I mentioned were made by Ingersoll except for the 434,434a, and 434b. Those were made by MAC at a manufacturing facility in St Louis. The plant has been closed for years and that's why most parts aren't available. They were great air tools and many of my customers still have die grinders that are still working good after 15-20 years. When they die they are gone! lol I don't have any good used guns around right now.
