Ruger MKII, MKIII, MK IV, 22/45 Standard Weight Recoil Spring By Volquartsen

Volquartsen LIGHT Recoil Spring VC3RSO-R Ruger Mark 1 2 3 4 22/45 & LITE MK IV

Volquartsen HEAVY Recoil Spring VC3RSO-H Ruger Mark 1 2 3 4 22/45 & LITE MK IV

Factory RUGER Rebound (Firing Pin) Spring MARK 1 2 3 4 IV & 22/45 & LITE

RUGER Mark IV 4 Recoil Spring Assembly fits Standard 1 2 3 4 & 22/45 LITE OEM

Factory RUGER Rebound firing pin Spring Support Mark 1 2 3 4 IV & 22/45 LITE

RUGER Rear Sight Windage Spring Mark 1 2 3 4 & 22/45 & LITE MK II III IV

RUGER Trigger Spring Plunger Mark 1 2 3 4 MK I II III IV MKIII 22/45 & LITE