I'm not so sure of this part. I own a replica Civil War cannon and have read a lot of the history of the time. The ideal was that'd you'd be well regulated - disciplined and proficient in the use of your long arm. That was originally smooth bore then rifled. You'd own it and have equipment for it. You'd also have some other gear.
Artillery was expensive but some units were formed below the state level. Wealthy individuals or townships could buy some of the heavy stuff that regular citizens couldn't afford so it was available but not expected. It never was expected to be run from the top. The militia was a bottom-up organization.
Steve

