Brian can AV you at TTAC3 but his games run on limited numbers so he required a sign up.
UA I think has an AVer on premises, I don't recall, but they run games usually without a signup unless its a special event. Games run daily except for Mondays and Tuesdays.
Both will require you to crony your gun before use.
"Hey I'm the first one to say its a great country but its a straaaaange culture. This is a place where gun store owners are given a list of stolen credit cards but not a list of CRIMINALS and MANIACS. And now they're thinking of banning toy guns...AND THEY'RE GONNA KEEP THE F**KING REAL ONES!"
-George Carlin 1937 - 2008 (RIP buddy)