No water guns or paintball guns. Metal BB guns MIGHT count. Airsoft doesn't.
Maybe include a breakdown.
I'd say 30 pistols, 20 rifles, 10 shotguns, 10 muzzle loaders, 2 cannons, and a gattling gun.
The pistols are everything from a matching set of Colt 6-shooters worth $10,000 to a .50 Desert Eagle ($1000) or Glock.
The rifles are AR-15s, SKS, Winchester Magnum, ...
Shotguns are all double barrel side-by-side or over-under, all for trap shooting, not hunting.
Cannons are working, but fire musket lead balls.
Muzzle loaders are all original flintlocks or cap.
Gattling gun is a gravity fed .22 short, shoots as fast as you crank it.