Numb3rs

Glock 23

FBI Special Agent Don Eppes' (Rob Morrow) main service pistol is a Glock 23 .40 S&W caliber pistol.

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Glock 23

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Glock 23

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Glock 23

Glock 22

FBI Special Agent David Sinclair's main service pistol is a Glock 22 .40 S&W caliber pistol.

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Glock 22

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Glock 22

Springfield Armory Custom TRP

FBI Special Agent Colby Granger's main service pistol is a .45ACP Springfield Armory Custom TRP Professional Model (Tactical Response Pistol), which indicates he is SWAT/HRT (Hostage Rescue Team) qualified, since only SWAT/HRT qualified FBI agents are authorized to carry that weapon on duty.

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Springfield Armory Custom TRP

Glock 27

FBI Special Agent Nikki Betancourt's main service pistol is a Glock 27 .40 S&W caliber pistol.

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Glock 27

Beretta 92FS

This is the main service pistol of all LAPD officers.

M4A1

This weapon is used by SWAT members and FBI agents in many episodes, usually with EOTechs and other add-ons.