Texas law enforcement officers, like those in other states, primarily carry semi-automatic handguns, often chambered in 9mm, .40 S&W, or .45 ACP. Alongside handguns, patrol officers may also have access to shotguns and patrol rifles, typically chambered in .223 Remington/5.56 NATO, for situations requiring increased firepower. Specific firearm models and calibers can vary between departments and individual officer preferences, within the bounds of departmental regulations.
Standardizing firearm platforms within and across agencies offers several advantages. Commonality simplifies training, maintenance, and logistics for firearm management, including ammunition procurement and spare parts. Interoperability enables officers from different agencies to assist each other effectively during large-scale events or emergencies. The selection of duty weapons reflects a balance between factors like stopping power, accuracy, ease of use, and platform reliability.