In response to the North Hollywood shootout of 1997 , LAPD officers had the option of carrying the Smith & Wesson Model 4506 and 4566 service pistols in .45 ACP caliber . Also , due to the North Hollywood incident , qualified officers were issued patrol rifles called UPR ( Urban Police Rifle ) consisting mainly of AR-15 variants chambered in .223 after being certified from LAPD Urban Police Rifle School
North Hollywood shootout
North Hollywood shootout
Los Angeles Police Department