This would be amazing, i just bought a new gun a indoor place would be nice upgrade to the southern Oregon area especially in the winter.
you could have a membership option with a monthly subscription for $34.99-49.99.
people that invite friends to join get a week free or something of that sort.
Overall I think it's a great idea but i am not sure where you will be able to do this at since there are not many pre existing warehouses that you can convert to a indoor course.
I would need to downgrade my spring under the 350 fps limit which I have no experience in doing. any ideas on what spring would bring in 330-350 fps on a KWA M4-RIS? m100 or sp100 probably?