Smoke comes out of an M9 Beretta 9mm pistol as a spent casing hurtles throught he air after Airman 1st Class Alejandro Guerrero fires the handgun at the Combat Arms Training and Maintenance facility at Sheppard Air Force Base, Texas, Feb. 21, 2019. Guerrero and other security forces members are required to periodically show proficiency with and qualify on the M4 carbine and the M9 Beretta, primary firearms carried by SFS Airmen. (U.S. Air Force photo by John Ingle)