As posted, this topic should be about firearms & the sidearms on FX's popular series: Justified.
As many film-tv industry & firearms insiders know, the 9mm/9x19mm is used more often to work with blanks. More shows & production companies use CGI/SFX for gun scenes now over blank firing weapons.
I'd heard from a few sources that the USMS(US Marshals Service,
www.usmarshals.gov ) uses the Glock 22 .40S&W & the 27 .40 as a BUG(back up).
A Glock gun press item I read a few years back stated the sworn Dep US Marshals & criminal investigators use many Glock models(17/22/23/21).
This includes the elite SOG or Spec Ops Group, the SWAT unit of the US Marshals Service.
Clyde