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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    Used - H&K HK G36 Magazine Catch Release Lever - HKP-19771 HK G36, SL8 Bolt Locking Lever - Complete - USED

    HK G36, SL8 Bolt Locking Lever - Complete - USED

    H&K Heckler & Koch

    $9.95
    H&K HK G36, SL8 Complete Locking Lever: USED   The locking lever is installed within the trigger housing, ensuring reliable and secure bolt lockup. Used in good condition.    Compatible With: H&K SL8, G36 H&K USC, UMP
    HKP-19771
    $9.95
    Out Of Stock
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    $9.95
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  • Out Of Stock
    New - HK UMP Paddle Mag Release Complete Assembly - HKP-19499 HK UMP Paddle Magazine Release Assembly, Complete

    HK UMP Paddle Magazine Release Assembly, Complete

    USA

    $19.95
    UMP Paddle Magazine Release - US Made - Assembly Complete New UMP Mag release. This is a very common repair and replacement part as they are fairly easy to break on the UMP lower. Simple and easy to install no gunsmith needed or required. Compatible...
    HKP-19499
    $19.95
    Out Of Stock
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    $19.95
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  • On Sale
    New - H&K 10 Round USP 40 Full Size Magazine Locking Plate - Black - HKP-02361
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    HK USP Full Size Magazine Locking Plate - .40 S&W - 10 Round

    H&K Heckler & Koch

    Now: $8.95
    Was: $9.95
    H&K 10 Round USP 40 Full Size Magazine Locking Plate Compatible With: USP .40 10 Round 
    HKP-02361
    Now: $8.95
    Was: $9.95
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  • Out Of Stock
    New - H&K HK P9S .45 ACP Magazine Spring - HKP-02045

    HK P9S .45 ACP Magazine Spring

    H&K Heckler & Koch

    $0.00
    HK P9 Magazine Spring
    HKP-02045
    $0.00
    Out Of Stock
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  • New - H&K HK P7M10 .40 S&W Magazine Follower Insert - HKP-01364
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    HK P7M10 Magazine Follower Insert - .40 S&W

    H&K Heckler & Koch

    $34.95
    HK P7M10 .40 S&W Magazine Follower Insert  
    HKP-01364
    $34.95
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  • Out Of Stock
    New - H&K HK P7 Series Firing Pin - HKP-00796

    HK P7 Series Firing Pin

    H&K Heckler & Koch

    $0.00
    H&K HK P7 Series Firing Pin Compatible With: HK P7 PSP HK P7 M8 HK P7 M10 HK P7 M13
    HKP-00796
    $0.00
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  • On Sale
    New - H&K HK Mark 23 Recoil Spring Washer - HKP-16640
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    HK Mark 23 Recoil Spring Washer

    H&K Heckler & Koch

    Now: $8.95
    Was: $9.95
    H&K HK Mark 23 Recoil Spring Washer New HK German Mark 23, SOCOM Recoil Spring Washer for Recoil Assembly.
    HKP-16640
    Now: $8.95
    Was: $9.95
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  • On Sale
    New - H&K HK Mark 23 Buffer Recoil Assembly Spring Washer - HKP-16641 HK Mark 23 Buffer Recoil Assembly Spring Washer
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    HK Mark 23 Buffer Recoil Assembly Spring Washer

    H&K Heckler & Koch

    Now: $8.95
    Was: $9.95
    H&K HK Mark 23 Buffer Recoil Assembly Spring Washer This washer has a recessed groove for the spring on the end of the recoil assembly.
    HKP-16641
    Now: $8.95
    Was: $9.95
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  • On Sale
    New - H&K HK Mark 23 Recoil Assembly Buffer Spring Retainer - HKP-16643
    Add to Cart

    HK Mark 23 Recoil Assembly Buffer Spring Retainer

    H&K Heckler & Koch

    Now: $10.95
    Was: $11.95
    H&K HK Mark 23 Recoil Assembly Buffer Spring Retainer
    HKP-16643
    Now: $10.95
    Was: $11.95
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  • On Sale
    New - H&K HK Mark 23 Decocking Lockout - HKP-01767
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    HK Mark 23 Decocking Lockout

    H&K Heckler & Koch

    Now: $8.95
    Was: $9.95
    HK Mark 23 Decocking Lockout  
    HKP-01767
    Now: $8.95
    Was: $9.95
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  • Out Of Stock
    On Sale
    New - HKP HK P30 Series Titanium Firing Pin - HKP-17828

    HK P30 Firing Pin - Titanium

    HKP HK Parts

    Now: $29.95
    Was: $49.95
    HKP HK P30 Series Titanium Firing Pin A solid billet CNC offering that's 40% lighter than comparable steel firing pins. Our titanium firing pins travel faster in the slide, delivering a quicker lock time & enhancing accuracy. Titanium pins also carry...
    HKP-17828
    Now: $29.95
    Was: $49.95
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  • Out Of Stock
    New - H&K HK USP New Style Hammer Strut - HKP-01661 HK USP New Style Hammer Strut

    HK USP New Style Hammer Strut

    H&K Heckler & Koch

    $0.00
    HK USP New Style Hammer Strut Compatible With: HK USP 9mm Full Size HK USP 40 S&W Full Size
    HKP-01661
    $0.00
    Out Of Stock
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