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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  • On Sale
    New - HK G41 Recoil Rod Spring - HKP-02051
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    HK G41 Recoil Rod Spring

    H&K Heckler & Koch

    Now: $35.95
    Was: $39.95
    HK G41 Recoil Rod Spring
    HKP-02051
    Now: $35.95
    Was: $39.95
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    Now: $35.95
    Was: $39.95
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  • New - H&K HK 45C Hammer Strut - HKP-02217
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    HK45 Compact Hammer Strut

    H&K Heckler & Koch

    $11.95
    Heckler and Koch HK45 Compact Hammer Strut Replacement hammer strut designed for the HK45 Compact pistol. Intended for maintenance or repair of compatible hammer assemblies to ensure proper operation. Compatible With: HK45 Compact
    HKP-02217
    $11.95
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    $11.95
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  • On Sale
    New - H&K HK Mark 23 Sear Block - HKP-01779 HK Mark 23 Sear Block
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    HK Mark 23 Sear Block

    H&K Heckler & Koch

    Now: $17.95
    Was: $19.95
    HK Mark 23 Sear Block
    HKP-01779
    Now: $17.95
    Was: $19.95
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    Now: $17.95
    Was: $19.95
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  • On Sale
    New - H&K HK Mark 23 Sear Axle - HKP-01786
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    HK Mark 23 Sear Axle

    H&K Heckler & Koch

    Now: $8.95
    Was: $9.95
    HK Mark 23 Sear Axle
    HKP-01786
    Now: $8.95
    Was: $9.95
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    Qty in Cart: 0
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    Now: $8.95
    Was: $9.95
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  • On Sale
    New - H&K HK Mark 23 Hammer Axle - HKP-01600
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    HK Mark 23 Hammer Axle

    H&K Heckler & Koch

    Now: $8.95
    Was: $9.95
    HK Mark 23 Hammer Axle
    HKP-01600
    Now: $8.95
    Was: $9.95
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    Now: $8.95
    Was: $9.95
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  • On Sale
    New - H&K HK Mark 23 Disconnector - HKP-01766
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    HK Mark 23 Disconnector

    H&K Heckler & Koch

    Now: $16.95
    Was: $17.95
    HK Mark 23 Disconnector
    HKP-01766
    Now: $16.95
    Was: $17.95
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    Qty in Cart: 0
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    Now: $16.95
    Was: $17.95
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  • On Sale
    New - H&K HK Mark 23 Decocking Lever - Black - HKP-01784 HK Mark 23 Decocking Lever
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    HK Mark 23 Decocking Lever

    H&K Heckler & Koch

    Now: $48.95
    Was: $53.95
    HK Mark 23 Decocking Lever
    HKP-01784
    Now: $48.95
    Was: $53.95
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    Now: $48.95
    Was: $53.95
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  • On Sale
    New - H&K HK Mark 23 Decocker - HKP-01781
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    HK Mark 23 Decocker

    H&K Heckler & Koch

    Now: $26.95
    Was: $29.95
    HK Mark 23 Decocker  
    HKP-01781
    Now: $26.95
    Was: $29.95
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    Now: $26.95
    Was: $29.95
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  • On Sale
    New - H&K HK P30/P2000 Bushing DAO - HKP-17425
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    HK P30, P2000 Bushing - DAO

    H&K Heckler & Koch

    Now: $8.95
    Was: $9.95
    H&K HK P30/P2000 Bushing DAO New HK German bushing for the DAO (Dual Action Only) variant.
    HKP-17425
    Now: $8.95
    Was: $9.95
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    Now: $8.95
    Was: $9.95
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  • On Sale
    New - H&K HK USP/45 V5/6/7 Tube - Black - HKP-02163
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    HK45, USP V5, V6, V7 Tube

    H&K Heckler & Koch

    Now: $4.95
    Was: $5.95
    HK USP/45 Variants 5, 6, & 7 Tube Compatible With: HK USP 9mm HK USP 40 S&W HK USP 45 ACP HK USP Compact 9mm HK USP Compact 357 HK USP Compact 40 HK USP Compact 45
    HKP-02163
    Now: $4.95
    Was: $5.95
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    Now: $4.95
    Was: $5.95
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  • Out Of Stock
    New - H&K HK USP/USPC/45/45C LEM Sear - HKP-02704 HK45, HK45 Compact , USP, USPC LEM Sear

    HK45, HK45 Compact , USP, USPC LEM Sear

    H&K Heckler & Koch

    $0.00
    HK USP, USPC, 45, & 45C LEM Sear LEM Hammer Fit Replaces The LEM Hammer In The Following Pistols: USP USPC HK45 HK45C
    HKP-02704
    $0.00
    Out Of Stock
    Qty in Cart: 0
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    $0.00
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    Out Of Stock
  • On Sale
    New - H&K HK USP/45/45C V5 Complete Bobbed Hammer DAO - HKP-01592 HK45, HK45 Compact, USP V5 Complete Bobbed Hammer DAO
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    HK45, HK45 Compact, USP V5 Complete Bobbed Hammer DAO

    H&K Heckler & Koch

    Now: $62.95
    Was: $68.95
    Complete Bobbed Hammer DAO   Compatible With These Variants 5, 6, 7: USP 45 ACP USP Compact 9mm USP Compact 40 S&W USP Compact 357 SIG USP Compact 45 ACP HK45 HK45 Compact
    HKP-01592
    Now: $62.95
    Was: $68.95
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    Qty in Cart: 0
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    Now: $62.95
    Was: $68.95
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