I just went thru MP AIT a few years ago (1999) and I am still an MP. You'll get a Beretta 9mm (otherwise known as the M9) if your unit maintains it it will be a good pistol. I have been in the Guard for this whole time, and have been deployed a lot (three times in the last year alone!) and I have never seen anyone with the Sig, which is the other pistol the Army authorizes and issues, known as the M11. MP's don't get any special privileges. In fact, unlike a civilian LEO, an MP only has law enforcement powers when he or she is on duty. Think of it like this, you only have LE powers when wearing the MP Bassard, but when you go off duty, the bassard comes off and you are just a regular soldier, you can't arrest anyone, boss sergeants around, nothing.