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 HK Mark 23 Ejector Roll Pin - HKP-01816
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    HK Mark 23 Ejector Roll Pin

    H&K Heckler & Koch

    $6.95
    HK Mark 23 Ejector Roll Pin The Mark 23 has been discontinued, and spare parts will become limited in time, so stock up now while we have these hard-to-find parts available.
    $6.95
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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
    $7.95
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  • Out Of Stock
    New - Tac Latch - PTR Spec - HKP-17611 PTR Spec - Tac Latch

    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...
    $69.95
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  • New - H&K G36K Gas Piston Rod/Spring Assembly - HKP-00284
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    HK G36K Rod and Spring - Gas Piston - Assembly

    H&K Heckler & Koch

    $89.95
    New HK German G36K Gas Piston Rod/Spring Assembly Great for spare parts or to use on that HK SL8-G36 conversion.  
    $89.95
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  • New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Cocking Lever - HKP-01884 HK UMP/USC (.40 S&W/.45 ACP/9mm) Cocking Lever
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    HK UMP/USC (.40 S&W/.45 ACP/9mm) Cocking Lever

    H&K Heckler & Koch

    $24.95
    HK UMP & USC Cocking Lever New HK German part. Compatible With: HK UMP HK USC
    $24.95
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  • Out Of Stock
    New - H&K Burst Eccentric Bushing - HKP-02647 HK Burst Eccentric Bushing

    HK Burst Eccentric Bushing

    H&K Heckler & Koch

    $54.95
    HK Burst Eccentric Bushing HK German factory part is found in all HK burst trigger packs. This part is in between the hammer shank hole and the inside of the trigger box hammer axle spacer. This part is one of the most common wear...
    $54.95
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  • New - GSG9 HK G36C Gas Piston Rod Spring Assembly - Black - HKP-18250 HK G36C Gas Piston Rod and Spring - Complete Assembly
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    HK G36C Gas Piston Rod and Spring - Complete Assembly

    GSG9

    $82.95
    HK German G36C Gas Piston Rod & Spring Assembly Complete A must have item for HK G36C conversions from SL8's or for spares for your G36C MG. A high wear and replacement part and a must have for spare parts.
    $82.95
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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
    $64.95
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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   
    $9.95
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  • Out Of Stock
    New - H&K HK USP/45/45C Trigger Bar Detent - HKP-01922

    HK45, HK45 Compact, USP Trigger Bar Detent

    H&K Heckler & Koch

    $5.95
    Trigger Bar Detent Compatible With: HK45, HK45 Tactical HK45C, HK45C Tactical HK USP 9mm HK USP .40 S&W HK USP .45 ACP HK USP Compact 9mm HK USP Compact .40 S&W HK USP Compact .357 SIG HK USP Compact .45 ACP All USP Tactical, Elite & Expert...
    $5.95
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  • New - HK 416/417 Buffer Retainer - HKP-20040
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    HK 416, MR566, HK417 MR762 Buffer Retainer

    HK HAUS

    $9.95
    HK 416/417 Buffer Retainer New HK USA manufacture for the HK 416 / 417  family of firearms. Made from stainless steel.
    $9.95
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  • New - H&K HK P7M8/P7M13 Detent, Piston - HKP-16327
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    HK P7M8, P7M13 Detent - Gas Piston

    H&K Heckler & Koch

    $9.95
    H&K HK P7M8/P7M13 Detent, Piston Compatible With: P7M8 P7M13
    $9.95
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