Photo Gallery: Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) test fires crime guns at Glendale Police gun range

Some of the crime weapons that were test-fired by Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) agents to collect the casing and test it, at the Glendale Police Dept. firing range in Glendale on Friday, June 30, 2017. The officers tested between 150-250 different types of crime guns to see if any of the casings match any found at crime scenes.

A Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) agent test-fires a rifle to collect the casings and test them, at the Glendale Police Dept. firing range in Glendale on Friday, June 30, 2017. The officers tested between 150-250 different types of crime guns to see if any of the casings match any found at crime scenes.

Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) agents test-fired rifles like these to collect the casing and test it, at the Glendale Police Dept. firing range in Glendale on Friday, June 30, 2017. The officers tested between 150-250 different types of crime guns to see if any of the casings match any found at crime scenes.

A Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) agent catalogues weapons after test-firing and collecting the casing, at the Glendale Police Dept. firing range in Glendale on Friday, June 30, 2017. The officers tested between 150-250 different types of crime guns to see if any of the casings match any found at crime scenes.

A Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) agent collects the used casing from a gun, at the Glendale Police Dept. firing range in Glendale on Friday, June 30, 2017. The officers tested between 150-250 different types of crime guns to see if any of the casings match any found at crime scenes.