You gentlemen will have to check your firearms if you want to join in on the festivities.
5 seconds sound clip from the Back to the Future Part III movie soundboard.
You can hear this line at 00:54:57.595 in the DVD version of the movie.
Quote context
[...]
- No, no, no! Right on out there and be real smooth. That's the way you do it.
- Listen, can I try that again?
- Hey, just tell me one thing. Where did you learn to shoot like that?
- Buford, you sure that blacksmith is gonna be at this here shindig?
- Sure he's here. Everybody's here tonight.
- You gentlemen will have to check your firearms if you want to join in on the festivities.
- Who's gonna make us, tenderfoot? You?
- I am.
- Marshal Strickland. I didn't know you was back in town.
- If you can't read the sign, Tannen, I presume you can read this.
- Pretty tough hombre when you're pointing a scatter gun at a man's back.
[...]