RECOIL SPRINGS - 17/17L, 20, 21, 22, 24, 31, 34, 35

For Use In:
    Glock 17, 17L, & 34, 9mm
    Glock 20, 10mm
    Glock 21, .45 ACP
    Glock 22, 24 & 35, .40 S&W
    Glock 31, .357 Sig 
  Please See Ratings Below

• Reduced Power...: 10, 11, 12, 13, 14, 15, 16 Lb.
• Factory Standard.: 17 Lb.
• Extra Power.........: 18, 19, 20, 22, 24 Lb.