I got my younger son a Kimber "Stainless Custom II" when he got promoted to Sgt. while he was in the USMC. He was an Expert with the M9 but not thrilled with it and I wanted him to have a great handgun when he returned to civilian life, which he now has. He's put all kinds of .45 ACPs (including lead bullet handloads) thru the Kimber and left it stock except for adding a couple of 9 rd. mags and night sights.
You would NOT want him shooting at you, from 7 yds. to 70.... He's become VERY friendly with that Kimber.
Tell him a retired USMC E-6 said "Semper Fi" and I 100% agree with the M9 Beretta-if I had to carry a 9mm I would prefer a browning High-Power- I carried a as issue 1911-A-1 as a TO weapon- "locked, cocked and ready to rock" never yet have fired or carried a John M. Browning designed weapon that wasn't dead money reliable--