For use in:
         HK45, All Series - .45 ACP - 10 Rounds

         Also for use in:
            USP - Expert Magazine 9mm - 18 Rounds
            USP - Jet Funnel Magazine 9mm - 18 Rounds

 For use in:
        HK45, All Series - .45 ACP - 8 Rounds

         Also for use in:
            UPS - Compact 9mm - 13 Rounds
            USP - Full-Size .40/.357 - 13 Rounds
            USP - Compact .40/.357 - 12 Rounds
            USP - Compact .45 ACP - 8 Round
            P2000 - 9mm - 13 Rounds
            P2000 - .40/.357 - 12 Rounds

Recoil springs for FULL SIZE MODELS are available with load rated specifications to help tailor the recoil function. Each recoil spring includes an extra power firing pin spring. NOTE: recoil spring replaces outer recoil spring only. Short buffer spring should not be changed.

• Reduced Power...: 10 Lb.
• Factory Standard.: 12 Lb. (9mm & .40 S&W)
• Factory Standard.: 14 Lb. (.45 ACP)
• Extra Power.........: 16, 18 & 20 Lb.

For all calibers, full size and compact models 

• Reduced Power...: 10 & 12 Lb.
• Factory Standard.: 14 Lb. (Reference Only)
• Extra Power........: 16 Lb.

Magazine springs for the H&K USP's are available in +10% extra power to improve feeding and reliability.

For use in:
         USP - Full-Size 9mm - 15 Rounds
         UPS - Compact 9mm - 13 Rounds
         USP - Full-Size .40/.357 - 13 Rounds
         USP - Compact .40/.357 - 12 Rounds
         USP - Compact .45 ACP - 8 Round

         Also for use in:
            HK45 - Compact .45 ACP - 8 Rounds
            P2000 - 9mm - 13 Rounds
            P2000 - .40/.357 - 12 Rounds

For use in:
          USP - Full-Size & Compact Models in 9mm - 10 Rounds
          USP - Full-Size & Compact Models in .40/.357 - 10 Rounds
          USP - Full-Size .45 ACP - 10 rounds

          Also for use in:
             P2000 - 9mm, .40/.357 - 10 Rounds
             VP9 - 9mm - 10 Rounds
             P30 - 9mm, .40/.357 - 10 Rounds

For use in:
          USP - Full-Size .45 ACP - 12 rounds
          Law Enforcement Magazine

  For use in:
        USP - Expert Magazine 9mm - 18 Rounds
        USP - Jet Funnel Magazine 9mm - 18 Rounds
       
         Also for use in:
            HK45, All Series - .45 ACP - 10 Rounds

 For use in:
        USP - Expert Magazine .40 - 16 Rounds

        Also for use in:
            P30, P30L, P30S, P30LS - 9mm - 15 Rounds
            P30, P30L, P30S, P30LS - .40 - 13 Rounds
            VP9 - 9mm - 15 Rounds

 For use in:
         VP9 - 9mm - 15 Rounds
       
         Also for use in:
            USP - Expert Magazine .40 - 16 Rounds
            P30, P30L - 9mm - 15 Rounds 
            P30, P30L - .40 - 13 Rounds

 

 For use in:
       VP9 - 9mm - 10 Rounds         

       Also for use in:
          USP - Full-Size & Compact Models in 9mm
          USP - Full-Size & Compact Models in .40/.357
          USP - Full-Size .45 ACP - 10 rounds
          P2000 - 9mm, .40/.357 - 10 Rounds
          P30 - 9mm, .40/.357 - 10 Rounds

For use in:
         VP9 - 9mm - 17 Rounds
         P30 - 9mm - 17 Rounds
       
 

 For use in:
         P30, P30L, P30S, P30LS - 9mm - 15 Rounds
         P30, P30L, P30S, P30LS - .40 - 13 Rounds
       
         Also for use in:
            USP - Expert .40 - 16 Rounds
            VP9 - 9mm - 15 Rounds

 For use in:
       P30, P30L, P30S, P30LS - 9mm, .40/.357 - 10 Rounds

       Also for use in:
          USP - Full-Size & Compact Models in 9mm
          USP - Full-Size & Compact Models in .40/.357
          USP - Full-Size .45 ACP - 10 rounds
          P2000 - 9mm, .40/.357 - 10 Rounds
          VP9 - 9mm - 10 Rounds

For use in:
         P30 - 9mm - 17 Rounds
         VP9 - 9mm - 17 Rounds

For use in:
          P2000SK - 9mm - 10 Rounds  
          P2000SK - .40/.357 - 9 Rounds
          VP9SK - 9mm - 10 Rounds

Recoil springs are available with load-rated specifications to tailor the recoil function to individual needs. Each load-rated recoil spring pak includes an extra power striker spring.

• Reduced Power...: 17, 18, 19 & 20 Lb.
• Factory Standard.: 21 Lb.
• Extra Power........: 23 & 25 Lb.

Recoil calibration pak - contains 1 each of the above reduced power recoil springs in 17, 18, 19 and 20 pounds, and 21 pound factory standard springs. Three extra power striker springs are also included

Magazine springs are available in +10% extra power to assure proper feeding in pistols with weakened or broken springs.

Recoil springs are available with load-rated specifications to tailor the recoil function to individual needs. Each load-rated recoil spring pak includes an extra power firing pin spring.
 

• Reduced Power...: 11 & 12 Lb.
• Factory Standard.: 13 Lb. (Reference Only)
• Extra Power.........: 16, 18 & 20 Lb.

Recoil calibration pak contains 1 each of the above extra power recoil springs in 16, 18 and 20 pounds. Three extra power firing pin springs are also included.

Hammer Springs (mainsprings)

• Reduced Power...: 14, 15 & 16 Lb.
• Factory Standard.: 17 Lb. (Reference Only)
• Extra Power.........: None available

Hammer Spring Pak - reduced power.
   This pak contains 1 each of 14, 15 and 16 pound reduced power hammer springs above, allowing adjustment of the firearm to individual requirements.

Magazine springs are available factory standard power and +10% extra power.

Striker Spring, 5.5 pounds reduced power allows smoother functioning of action.
(Factory spring is 6.5 Lb.)