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 P Series LEM Hammer - HKP-15436 HK P Series LEM Hammer
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    HK P Series LEM Hammer

    H&K Heckler & Koch

    $65.95
    H&K HK P Series LEM Hammer Factory HK German hammer. Compatible With: HK P30 P30L P30SK HK P2000 P2000SK
    HKP-15436
    $65.95
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  • New - H&K HK USPC/45/45C Magazine Locking Plate - Black - HKP-02250 HK45, HK45C, USP Compact Magazine Locking Plate
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    HK45, HK45C, USP Compact Magazine Locking Plate

    H&K Heckler & Koch

    $7.95
    HK USPC, 45, & 45C Magazine Locking Plate New factory German HK. Compatible With: HK45 HK45 Tactical HK45C HK45C Tactical HK USPC .45 HK USPC .45 Tactical
    HKP-02250
    $7.95
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  • Out Of Stock
    New - H&K HK USP/USPC .45 ACP New Style Extractor - HKP-01478 HK USP, USP Compact .45 ACP New Style Extractor

    HK USP, USP Compact .45 ACP New Style Extractor

    H&K Heckler & Koch

    $59.95
    New Style Extractor New HK German part with red loaded chamber indicator.  Compatible with: USP 45, USP 45 Tactical USP Compact .45, USPC .45 Tactical USP Expert
    HKP-01478
    $59.95
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  • New - H&K HK MR556/416 Roll Pin for Catch On Bolt Carrier - HKP-16847
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    HK416, MR556 Bolt Carrier Roll Pin

    H&K Heckler & Koch

    $6.95
    H&K HK MR556/416 Roll Pin for Catch On Bolt Carrier This roll pin is used in the bolt carrier to secure the catch. Compatible With: HK MR556 HK 416
    HKP-16847
    $6.95
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  • New - H&K G36/SL8 (5.56/.223) Cocking Handle Axle Pin - HKP-01877
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    HK G36, SL8 Cocking Handle Axle Pin

    H&K Heckler & Koch

    $11.95
    HK German G36 & SL8 Cocking Handle Axle Pin This is the rivet pin that is used to attach the swiveling cocking handle to the body of the carrier. These can be replaced as they break and wear.  Compatible With: HK G36 HK SL8
    HKP-01877
    $11.95
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  • New - H&K UMP (9mm) Extractor - HKP-00266
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    HK UMP Extractor - 9mm

    H&K Heckler & Koch

    $60.95
    New HK German USC/UMP 9mm Extractor This is the perfect spare part to have for your UMP or USC 9mm conversion. Hard to find and only available here at HKPARTS.
    HKP-00266
    $60.95
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  • Out Of Stock
    New - H&K HK 45/45C V3 Left Side Decock Only Lever - HKP-02706

    HK45, HK45 Compact V3 Left Side Decock Only Lever

    H&K Heckler & Koch

    $49.95
    Decock Lever ONLY For Left Side Of Frame - HK45, HK45C This control lever is for those who are right-handed and want the control lever on the left-hand side of the frame with the decock function only.  Compatible With: HK45, HK45...
    HKP-02706
    $49.95
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    $49.95
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  • New - H&K HK 45/45C Left Side Safety Lever - Black - HKP-01770
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    HK45, HK45 Compact Left Side Safety Lever

    H&K Heckler & Koch

    $29.95
    HK 45/45C Left Side Safety Lever This control lever is for those who are right-handed and want the control lever on the left-hand side of the frame. This is the V1 selector with a decocking function and safety...
    HKP-01770
    $29.95
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  • New - H&K HK G36/SL8 Extractor - HKP-00287 HK G36, SL8 Extractor
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    HK G36, SL8 Extractor

    H&K Heckler & Koch

    $79.95
    G36 & HK SL8 German Extractor For Bolt Head New HK German. This is a great item to keep as a spare. Compatible With: All G36 Variants SL8-1, SL8-6
    HKP-00287
    $79.95
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  • New - USA HK G36, HK SL8 Magazine Paddle Release - HKP-18222 HK G36, SL8 Paddle Magazine Release
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    HK G36, SL8 Paddle Magazine Release

    USA

    $17.95
    US Magazine Paddle Release for HK G36 and HK SL8 HK G36 Mag Release or mag catch.  Compatible With: SL8 G36 G36K G36C
    HKP-18222
    $17.95
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  • New - H&K HK MR556/416 Extractor Axle Pin - HKP-00040
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    HK416, MR556 Extractor Axle Pin

    H&K Heckler & Koch

    $11.95
    HK MR556 & 416 Extractor Axle Pin This factory HK German part holds the extractor in place on the bolt head. This item needs to be changed each time it is removed per HK. Compatible With: HK MR556 HK 416 M27 HK 416 A5  
    HKP-00040
    $11.95
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  • On Sale
    New - HK G36/SL8 Extractor - HKP-18882 HK G36, SL8 Extractor
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    HK G36, SL8 Extractor

    USA

    Now: $39.95
    Was: $67.95
    G36 & HK SL8 Extractor For Bolt Head Compatible With: All G36 variants SL8-1, SL8-6
    HKP-18882
    Now: $39.95
    Was: $67.95
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