I’ll assume you’ve seen the staples like Terminator 1 and 2, The Matrix, Christopher. Nolan Batman series, etc. Here are a few of my faves that aren’t quite as top of mind:
Last Man Standing - underrated gunslinging movie starring Bruce Willis that takes place during prohibition. Christopher Walken has a memorable role. Gunplay is a little corny at times but it’s forgiveable.
Hero - not usually a fan of Asian martial arts movies, but Hero is one of my favorites. Soundtrack is amazing. Plus it isn’t very long…I think under 1 1/2 hours.
Heat - the shootout scenes are incredible, and Al Pacino and Robert De Niro deliver great performances
Spy Game - not sure this is technically an action movie, but it’s a fast paced spy thriller that I found entertaining even after multiple watches