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 USPC Lanyard Loop Insert Pin - HKP-01253
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    HK USP Compact Lanyard Loop Insert Pin

    H&K Heckler & Koch

    $19.95
    H&K HK USPC Lanyard Loop Insert Pin Compatible With: HK USP Compact 9mm HK USP Compact .40 HK USP Compact .357 HK USP Compact .45 HK USP Compact Tactical
    HKP-01253
    $19.95
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  • New - H&K MP5 40/10 +4 Roller - HKP-00335 HK MP5 Locking Roller +4 - .40 S&W, 10mm
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    HK MP5 Locking Roller +4 - .40 S&W, 10mm

    H&K Heckler & Koch

    $20.95
    H&K Heckler and Koch New +4 roller for HK MP5 40/10  Hard to find and essential for making headspace adjustments when necessary. Great spare to have on hand and no longer in production.  Please Note: The price listed is per roller...
    HKP-00335
    $20.95
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  • New - H&K MP5 40/10 Standard 8mm Roller - HKP-00338 HK MP5 Roller - Standard 8mm - .40 S&W, 10mm
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    HK MP5 Roller - Standard 8mm - .40 S&W, 10mm

    H&K Heckler & Koch

    $20.95
    HK German MP5 40/10 8mm Roller - Factory New Hard to find and essential for making headspace adjustments when necessary. Great spare to have on hand and no longer in production.  Please Note: The price listed is per roller. Order 2 (pair) for a...
    HKP-00338
    $20.95
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  • New - H&K USP V1/V2 Detent Plate - HKP-21982 HK USP Detent Plate - V1, V2
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    HK USP Detent Plate - V1, V2

    H&K Heckler & Koch

    $13.95
    H&K USP V1/V2 Detent Plate Detent plate for full-size USP pistols. Used to convert or configure the pistol to Variant 1 (left-side safety/decocker) or Variant 2 (right-side safety/decocker). Ideal for users customizing their control layout...
    HKP-21982
    $13.95
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  • Out Of Stock
    New - H&K HK G36, HK SL8 Roll Pin for Gas Piston - Black - HKP-16386

    HK G36, SL8 Roll Pin - Gas Piston

    H&K Heckler & Koch

    $9.95
    H&K HK G36, HK SL8 Roll Pin for Gas Piston
    HKP-16386
    $9.95
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  • New - H&K HK MR762/417 Charging Handle Catch - HKP-16852 HK417, MR762 Charging Handle Catch
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    HK417, MR762 Charging Handle Catch

    H&K Heckler & Koch

    $59.95
    HK MR762, HK417 Extended Charging Handle Catch Complete  New HK German manufacture. A great part to have on hand as these are prone to breakage and wear. Compatible With: HK MR762 HK 417 HK G28
    HKP-16852
    $59.95
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  • New - H&K HK Mark 23 Hammer Spring - HKP-01587
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    HK Mark 23 Hammer Spring

    H&K Heckler & Koch

    $10.95
    HK Mark 23 Hammer Spring
    HKP-01587
    $10.95
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  • Out Of Stock
    New - Strike Industries M-LOK & Key Mod Universal Rail - 7 Slots - HKP-17594 MLOK LINK Rail Section - 7 Slots - QD

    MLOK LINK Rail Section - 7 Slots - QD

    Strike Industries

    $25.95
    Strike Industries M-LOK & Key Mod Universal Rail - 7 Slots Strike Industries LINK attachment system takes the age old question Key-Mod vs. M-LOK and came up with the ultimate solution, a dual interface design compatible with both M-LOK and Key-Mod,...
    HKP-17594
    $25.95
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  • New - H&K CC9 Slide Cover Plate - HKP-22135
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    HK CC9 Slide Cover Plate

    H&K Heckler & Koch

    $9.95
    H&K CC9 Slide Cover Plate Made in Germany by H&K, the slide cover plate for the CC9 pistol retains the firing pin assembly within the slide. Compatible With: HK CC9  
    HKP-22135
    $9.95
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  • New - H&K HK 45/P30SK Lockout Compression Spring - HKP-02272
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    HK45, P30SK Safety Lever Compression Spring

    H&K Heckler & Koch

    $6.95
    HK 45 & P30SK Lockout Compression Spring   Compatible With: HK45 HK45 Compact HK P30SK
    HKP-02272
    $6.95
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  • New - H&K 10 Round HK USP/Mark 23 .45 ACP Magazine Locking Plate - HKP-01591
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    HK USP, Mark 23 Magazine Locking Plate - .45 ACP - 10 Round

    H&K Heckler & Koch

    $5.95
    10 Round Magazine Locking Plate Compatible With: HK USP 45 ACP 10 round magazine HK Mark 23 10 round magazine
    HKP-01591
    $5.95
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  • New - H&K HK G36/SL8 Sling Pin Forearm Retaining Clip - HKP-16366 HK G36, SL8 Sling Pin Retaining Clip for Handguards
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    HK G36, SL8 Sling Pin Retaining Clip for Handguards

    H&K Heckler & Koch

    $9.95
    HK G36 & SL8 Sling Pin Retaining Clip Compatible With: HK G36 HK G36K- older version only HK SL8-1 , SL8-6 Factory Forearm
    HKP-16366
    $9.95
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