You are being a pest because that IS what the LAPD gives you when you graduate the academy.
Fucking look it up.
A lot of jurisdictions give .45s.
ok, here's what I found
Until 2002, LAPD officers' standard issue pistol was the Beretta 92F/92FS. However, when William Bratton was appointed Chief of the LAPD, he allowed his officers to carry the Glock pistol, a weapon which the two previous departments he was chief at (the New York City Police Department and the Boston Police Department) carried. New officers graduating from the LAPD academy are
now issued the
Glock 22 or Glock 17 but can qualify in a variety of firearms.[78] Officers now have the choice of carrying
Beretta:
92F, 92FS, 92FS-Stainless Steel, 8045 (4" barrel)
Smith & Wesson:
459, 5904, 5903, 659, 5906, 645, 4506, 4566, 4567, 5903 TSW, 5906 TSW, 4569 TSW, and 4566 TSW.
Glock:
9mm: Model 34, Model 17, Model 19 .40 caliber: Model 35, Model 22, Model 23 .45 ACP: Model 21, 21SF
That was from a quick wiki search but if you find something different, cool. Skip would call you a liar for saying Glock 21 but I just think you were mistaken. It happens