Colorado's only big-time national gun show is the third weekend in May...

[Dark Star]

Every year, just guns, nothing else, usually around a thousand tables. No current manufacture guns allowed.

The link does not work directly but it will get you there if you cut-and-paste it.

https://cgca.com/gun-show/

[RDS]

It must be nice to attend a show with out flea market junk, dried alligator heads and the beef jerky guy. Unfortunately the norm for a Pa gun shows is the former mentioned vendors.