HK Hammer full size USP 9/40/45 and USP Compact 9/40/357/45, V1, V2, V3, V4, V9, V10 and HK45

HK Hammer for full size USPs chambered in 9mm and .40S&W, .45ACP and USP Compact 9mm, .40S&W, .357SIG and .45ACP. models with trigger variants V1, V2, V3, V4, V9, V10. Will also fit HK45.