This is a bit more complicated than say a V1 to a V3 switch where only a detent plate is needed. You may be better off having HK do the switch especially if the warranty is wanted to remain in tact. Only HK Trussville does warranty work so even if you are HK certified armorer, such as for a police department, it will still void the civilian warranty unless you are doing department work.Hi,
I have a customer that would like his USP V1 converted to DAO, I forgot which parts are needed to perform this conversion....I'm a V1 type of shooter. Any help would be appreciated.