Shootist,
Always glad to see more joining 3-Gun, always said it was the best of all the games being shot.
Are you shooting Tactical, limited or open? Lets assume Tactical & limited.
1.Starting with your pistol, you'll need a holster, safariland makes several, the 560 model or the 6004 tactical which I use for most tactical 3Gun matches. You also need 2 maybe 3 mag pouches & a good belt that won't come off, as mine did at Kyles match last year during one of his crazy stages. Train crash for me!!!!!!!!
2. Rifle- AR-15 works best, but bring what you got & learn. First time is always a learning experience. At least two 30 rd. mags & mag pouches. It always nice to have a couple of 20 rounders, just in case there are some quick reload stages. 20's reload faster! If you can find a Sterling 40 rd. mag, they are also a good thing to have for those mega rd. stages. Sterling is the only 40 that I have found to work all the time. Sights? To each there own, I like a narrow front sight for iron & a 1.5x-5x Leupold for Tactical scoped. If there is match rule on the type of scopes that can be used, such as military adopted only, ACOG 4x with crosshairs for me. You'll never need anything more than 4x or 5x in this game. Low power variable scopes are the best ticket.
3.Shotgun- Autoloader a must (except for HE-Man Class I believe only pump in this class). 9 rd. Extended tube, 22" barrel. Then there's the debate over what blaster Rem, Browning, Win, or Benelli, again this will be to your own liking. I like gas gun Rem. best. California Competition is making 4 & 6 rd. shell holders for the belt that work real well. Side saddle that will hold 7 on the receiver, I use one for the forearm also that holds 6. Easyloader for Rem. makes reloads so much easier.
3GunGear.com has a ton of stuff that you can look over. There several topics in this forum that cover alot of the equipment being used. No matter what, if you don't have someting when you go to a match, there is always someone there who will most likely loan you what you need to get started & to help you out.
Hope this helps!
Tony