Petty Officer 2nd Class Seth Cate, a gunner's mate stationed at U.S. Coast Guard Sector Field Office Grand Haven, ejects a spent cartridge of 12-gauge 00 buckshot during the practical riot shotgun course at the Alpena Combat Readiness Training Center in Alpena, Michigan, April 26, 2018. The Firearms Instructor recertification and evaluation is an annual training of all the Coast Guard firearms instructors located within the 9th District. (U.S. Coast Guard photo by Petty Officer 3rd Class Brian McCrum)