I've got a 1911 that's a Sig - get one like that and take care of it in one shot!
<joking!>
Link - what you have'll do fine. Just have fun at it. If you haven't shot with any of the group yet, expect a new shooter safety briefing your first time there. Take a long tail button shirt if you don't have a jacket or vest to wear for concealment.
www.eastontacticalops.com has lots of info on what to expect, what to do, what not to do, etc. on their webpage. It's a good starter for a new shooter.
Welcome to the club! It's a fun bunch that I shoot with, have learned much, and plan on keeping up on the shooting. Enjoy!
HP'ing Along