Not usually. The rifle is their usual weapon. However, if they work with a crew-served weapon such as a machine gun they might also have a pistol.

Do infantry carry pistols?

Pistols are not typically issued to front-line infantry. Before firearms were commonplace, officers and often NCOs typically carried swords instead.

Does the army issue pistols?

Since 2017, the US military has distributed to troops more than 100,000 M17 and M18 handguns, the newest sidearm for the services. ...