the hoffman devise?

ive seen them mounted on m1’s, m60a3’s, and m60a1’s barrel, what exactly do they do?

There is a good article here:

http://www.cleantechcentral.com/Magazine/Past-Issues/may2003/3.cfm

Hope this helps.

In a nut shell, the hoffman devise is a tank main gun simulator. When hooked up to the tank and “MILES” gear as the main gun is fired a simulator charge is fired creating smoke and sound. The article Claymore68 posted will fill in all the details.

Happy Tanking![8D]

thanks