Small Parts

Small Parts

Explore our extensive selection of HK small parts at HKParts, perfect for repairs, upgrades, and custom builds. Our inventory includes high-quality, precision-machined replacement parts and maintenance kits designed for a wide range of HK models. Whether you need push pins, springs, or custom components, our HK-specific small parts ensure optimal performance and durability for your firearm.

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  • New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Cocking Handle Pin - HKP-01885
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    HK UMP, USC Cocking Handle Pin

    H&K Heckler & Koch

    $7.95
    HK UMP & USC Cocking Handle Pin Compatible With: HK UMP HK USC
    HKP-01885
    $7.95
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  • New - H&K HK USP 9mm/.40 S&W Recoil Rod Assembly - HKP-01458
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    HK USP 9mm, .40 S&W Recoil Rod Assembly

    H&K Heckler & Koch

    $64.95
    H&K HK USP 9mm/.40 S&W Recoil Rod Assembly New HK German USP full size USP 9/40 recoil assembly complete. A great spare part to have on hand as the recoil spring is a high-wear item. Compatible With: HK USP 9mm HK USP .40
    HKP-01458
    $64.95
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  • Out Of Stock
    New - H&K HK416/417/MR556/MR762 Catch Spring - Magazine - HKP-02620

    HK416, MR556, HK417, MR762 Magazine Catch Spring

    H&K Heckler & Koch

    $9.95
    Heckler and Koch Magazine Catch Spring for HK 416, HK MR556 and HK417, MR762 HK German manufacture. Compatible With: HK416, MR556 M27 HK417, MR762 G28 AR15, M4, M16 firearms
    HKP-02620
    $9.95
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    $9.95
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  • New - Tac Latch - PTR Spec - HKP-17611 PTR Spec Tac Latch
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    PTR Spec Tac Latch

    Other

    $69.95
    Tac Latch (latest Generation) PTR Spec - PTR .308 Firearms The new updated style of Tac latch is made specifically for the PTR 91 .308 receiver and will require very little modification to the firearm for installation. A major overhaul of the existing...
    HKP-17611
    $69.95
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  • New - H&K MR556/MR762 A4 Safety Lever - Right - HKP-21966 HK MR556, MR762 A4 Safety Lever - Right
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    HK MR556, MR762 A4 Safety Lever - Right

    H&K Heckler & Koch

    $13.95
    H&K MR556/MR762 A4 Safety Lever - Right H&K factory right-side selector lever for MR-series ambidextrous safety systems.  Compatible With: HK MR762 A1/A4 HK MR556 A1/A4
    HKP-21966
    $13.95
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  • New - H&K HK P30SK/P2000SK Hammer Spring - HKP-02598
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    HK P30SK, P2000SK Hammer Spring

    H&K Heckler & Koch

    $9.95
    HK German Hammer Spring  This spring is used with LEM and all standard models. Compatible With: P2000SK P30SK   
    HKP-02598
    $9.95
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  • New - H&K HK USP/USPC Lanyard Loop Insert - HKP-01935 HK USP, USP Compact Lanyard Loop Insert
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    HK USP, USP Compact Lanyard Loop Insert

    H&K Heckler & Koch

    $13.95
    HK USP/USPC Lanyard Loop Insert Compatible With: HK USP 9mm HK USP .40 HK USP Compact 9mm HK USP Compact .40 / .357 HK USP Compact .45
    HKP-01935
    $13.95
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  • New - MP5, HK94, MP5K, SP89 & SP5K - Tac Latch - HKP-02792 HK MP5, HK94, MP5K, SP5K Tac Latch
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    HK MP5, HK94, MP5K, SP5K Tac Latch

    Other

    $69.95
    New Tac Latch (latest Generation) Paddle Style Magazine Release For The HK94, SP89, HK SP5K Family of Firearms HK's were designed to have a quick one-handed release capability for the magazine (paddle mag release). However, the semi-auto...
    HKP-02792
    $69.95
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  • HK91, G3, PTR 91 Spare Parts Kit HK91, G3, PTR 91 Spare Parts Kit
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    HK91, G3, PTR 91 Spare Parts Kit

    HKP HK Parts / Heckler & Koch

    $149.95
    HKP HK G3, HK 91, PTR 91 Spare Parts Kit Spare parts kits for the most commonly worn parts needed to keep your HK G3 going. This offering also includes a pouch to safely store all your replacement parts and needed tools to have on hand when required...
    HKP-20684
    $149.95
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  • New - H&K HK 45/P30/P2000/USPC Recoil Spring Washer Retainer - HKP-02428
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    HK45, P30, P2000, USP Stop Disc - Recoil Spring

    H&K Heckler & Koch

    $12.95
    HK 45, P30, P2000, & USPC Recoil Spring Washer Retainer This disk supports and keeps the recoil spring centered and captive on the recoil rod itself.  Compatible With: HK45, HK45 Tactical HK45 Compact, HK45 Compact Tactical USP Compact, USP...
    HKP-02428
    $12.95
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  • Used - HK German -2 Locking Roller Standard 7.98mm - Used - HKP-20600 HK MP5, HK90 Series Locking Roller -2 - Standard 7.98mm - Used
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    HK MP5, HK90 Series Locking Roller -2 - Standard 7.98mm - Used

    H&K Heckler & Koch

    $9.95
    HK German Locking Roller Standard 7.98mm - Used The proper roller size is essential for proper head spacing and bolt gap. Used German German-made -2 or 7.98mm roller, each roller is priced per roller. Used HK German. HK locking roller, -2, 7.98mm. HK...
    HKP-20600
    $9.95
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  • Out Of Stock
    New - H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Sear Spring - HKP-01866

    HK G36, UMP Sear Spring

    H&K Heckler & Koch

    $8.95
    HK UMP, USC, G36, & SL8 Sear Spring This part is used in conjunction with the sear in the trigger body of the lower.  
    HKP-01866
    $8.95
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    $8.95
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