i'm thinking a lot of companies will be producing markers that are the same or close to the the same thing. however it might be one company used for the production.
around 2006-2008 markers that used the fasor system were made by a guy name mike spurlock like diablo-wrath, and the whole empire dragun line up and some others. what happen was him or his company were making or selling the rights to his design.
I think this is happening again with these markers. but i could be wrong and every company could have there own there R&D department and designing these thing. In the US or European/Aussy market.
however, i'm going to base it off that history. Some of these marker where being made in chinese market
Bob Long said that they are the only marker still made in the USA but I dont know if that is true. I would keep to that or European markers, I.E. WDP or Eclipse....Oh and that Macdev stuff. cost wise yes it high new but used you can get some great stuff. finally i will say see where the marker is made before buying it.
but i believe they are 100% in the US