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 VP9/VP9SK, VP40 Firing Pin Pressure Spring - HKP-16831
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    HK VP9, VP9SK, VP40 Return Spring - Firing Pin

    H&K Heckler & Koch

    $9.95
    H&K VP9/VP9SK, VP40 Firing Pin Pressure Spring   Compatible With: HK VP9/VP9SK HK VP9A1 F, VP9A1 K HK VP40
    $9.95
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    $9.95
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  • HK Magazine Release - HK45 & P30, P30L, P30SK HK Magazine Release - HK45 & P30, P30L, P30SK
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    HK Magazine Release - HK45 & P30, P30L, P30SK

    H&K Heckler & Koch

    $15.95
    H&K Magazine Release Compatible With: HK45 HK45 Tactical HK P30, P30S, P30L, P30SK Please Note: This part will not fit pistols other than the ones listed above.
    $15.95
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  • New - HKP Elbow Spring Spacer For Semi-Auto - HKP-18210 HK MP5 Bushing Sleeve - Elbow Spring with Roller
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    HK MP5 Bushing Sleeve - Elbow Spring with Roller

    HKP HK Parts

    $8.95
    HK Parts Distance Sleeve replacement for your elbow spring in your Semi-Auto MP5  New USA manufacture. Semi auto spacer for elbow spring on the HK 90 series trigger packs. Micro polished and made from stainless steel. This is the finest semi auto...
    $8.95
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  • New - H&K HK MR556/MR762/416/417 Forward Assist Plunger Spring - HKP-02537
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    HK416, HK417, MR556, MR762 Forward Assist Plunger Spring

    H&K Heckler & Koch

    $5.95
    H&K HK MR556/MR762/416/417 Forward Assist Plunger Spring New HK German manufacture. Compatible With: HK MR556 HK 416 HK MR762 HK 417 HK G28 HK M27
    $5.95
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    $5.95
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  • New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Cocking Lever Spring - HKP-01886
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    HK UMP, USC Cocking Lever Spring

    H&K Heckler & Koch

    $8.95
    HK UMP & USC Cocking Lever Spring A great spare part to have on hand.
    $8.95
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    $8.95
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  • New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Firing Pin Spring - HKP-00262
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    HK UMP, USC Firing Pin Spring

    H&K Heckler & Koch

    $9.95
    H&K UMP/USC (.40 S&W/.45 ACP/9mm) Firing Pin Spring This is a common wear and breakage item. This item also frequently becomes lost by end users when field stripping the UMP and USC Bolts.  Compatible with: All HK UMP & USC Firearms
    $9.95
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    $9.95
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  • New - H&K HK MR556/HK416 FFRS Retaining Spring - HKP-02617
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    HK416, MR556 FFRS Retaining Spring

    H&K Heckler & Koch

    $9.99
    H&K HK MR556/HK416 FFRS Retaining Spring The retainer spring retains the handguard locking pin on the Free Floating Rail System (FFRS). These can become damaged with the removal of the handguard screws. Once the spring is damaged, they have to be...
    $9.99
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  • New - H&K HK VP9/VP9SK, VP40 Right Side Slide Release - Black - HKP-16794 HK VP9, VP9SK, VP40 Right Side Slide Release
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    HK VP9, VP9SK, VP40 Right Side Slide Release

    H&K Heckler & Koch

    $18.95
    Right Side VP9, VP40 Slide Release Lever   Compatible With: HK VP9 HK VP9A1 F HK VP9A1 K HK VP9SK HK VP40
    $18.95
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    $18.95
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  • New - H&K UMP (.45 ACP) Magazine Locking Plate - HKP-16338 HK UMP Magazine Locking Plate - .45 ACP
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    HK UMP Magazine Locking Plate - .45 ACP

    H&K Heckler & Koch

    $9.95
    H&K UMP (.45 ACP) Magazine Locking Plate
    $9.95
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  • New - H&K Trip Lever - Friction - HKP-02393 HK Trip Lever - Friction
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    HK Trip Lever - Friction

    H&K Heckler & Koch

    $24.95
    H&K Trip Lever - Friction This is the older friction-style trigger pack found on older HK trigger packs and all HK registered sear packs.
    $24.95
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    $24.95
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  • New - H&K HK Mark 23 Extractor Spring - HKP-01430
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    HK Mark 23 Extractor Spring

    H&K Heckler & Koch

    $9.95
    Extractor Spring For HK Mark 23 Or SOCOM Pistol New HK German factory nickel-plated extractor spring. A great spare to have on hand and one of the highest wear and replacement parts on the Mark 23. Compatible with all models and years of the Mark 23...
    $9.95
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  • New - H&K (5.56/.223) & (7.62x51/.308) Contact Piece For Paddle Mag Release - HKP-00465 HK91, G3, HK33, HK53, HK93 Contact Piece for Paddle Mag Release
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    HK91, G3, HK33, HK53, HK93 Contact Piece for Paddle Mag Release

    H&K Heckler & Koch

    $29.95
    HK .223/556 & 308 Contact Piece For Paddle Magazine Release German HK manufacture. The contact piece is used in the magazine release assembly for the paddle mag release. Compatible With: HK 33, 53, 93 HK G3, 91, PTR91
    $29.95
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    $29.95
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