U.S. Army paratroopers from 2nd Battalion, 503rd Infantry Regiment, 173rd Airborne Brigade, engage targets with the M240 machine gun, M4 carbine and M320 grenade launcher during a live-fire exercise as part of Exercise Rock Sokol at Pocek Range in Postonja, Slovenia.
![](http://www.aiirsource.com/wp/wp-content/uploads/2016/03/army-paratroopers-live-fire-m240-1280x768.jpg)