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 SL8-1 Rear Sight Screw - HKP-16383
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    HK SL8-1 Sight Screw, Rear

    H&K Heckler & Koch

    $14.95
    H&K HK SL8-1 Rear Sight Screw
    HKP-16383
    $14.95
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  • New - H&K G36 (5.56/.223) Catch Axle - HKP-01872
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    HK G36 Catch Axle

    H&K Heckler & Koch

    $7.95
    HK G36 Catch Axle For All Lowers  
    HKP-01872
    $7.95
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  • New - H&K 91/93/33/53/G3 (5.56/.223) & (7.62x51/.308) Anti-Rattle Mag Release - HKP-01126 HK33, HK53, HK93, HK91, G3 Anti-Rattle Mag Release
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    HK33, HK53, HK93, HK91, G3 Anti-Rattle Mag Release

    H&K Heckler & Koch

    $64.95
    HK German Anti Rattle Paddle Magazine Release This item is a new H&K genuine part not used or surplus for installation on all HK .223 & .308 HK Rrifles. This is the highly desired anti-rattle-style paddle mag release. Compatible With: HK 91 HK...
    HKP-01126
    $64.95
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  • New - H&K MP5 40/10 -4 Roller - HKP-00337 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

    $19.95
    H&K Heckler and Koch HK German -4 roller for 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. Order...
    HKP-00337
    $19.95
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  • New - H&K MR762 A4 1.0mm Gas Vent Screw - HKP-21954 HK MR762 A4 Gas Vent Screw - 1.0mm-2.5mm
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    HK MR762 A4 Gas Vent Screw - 1.0mm-2.5mm

    H&K Heckler & Koch

    $29.95
    Heckler and Koch MR762 A4 Gas Vent Screws German gas vent screw for MR762 A4 gas block. Specifications: Factory reference: 1.3mm is the common factory vent screw size for MR556 A4 Sizing reminder: Larger mm equals more venting, Smaller mm...
    HKP-21954-M
    $29.95
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  • Out Of Stock
    New - H&K VP9, VP40 Backstrap - Small - Gray - HKP-18125 HK VP9, VP40 Backstrap - Small - Gray

    HK VP9, VP40 Backstrap - Small - Gray

    H&K Heckler & Koch

    $19.95
    H&K VP9, VP40 Backstrap - Small - Gray   Compatible With: HK VP9 HK VP9A1 F HK VP9A1 K HK VP40
    HKP-18125
    $19.95
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  • New - H&K HK MR762/417 Axle Extractor Retaining Pin - HKP-16810
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    HK417, MR762 Axle Extractor Retaining Pin

    H&K Heckler & Koch

    $8.95
    H&K HK MR762/417 Axle Extractor Retaining Pin This extractor retaining pin is constructed of durable, black finished, steel and is an OEM factory original H&K component. This retaining pin is designed to fit the HK417 & MR762 model of rifles...
    HKP-16810
    $8.95
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  • New - HKP HK MR762/417 Titanium Firing Pin - HKP-17768
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    HK417, MR762 Firing Pin - Titanium

    HKP HK Parts

    $49.95
    HK MR762 & HK417 Firing Pin - Titanium Grade 6 weapons grade Titanium manufacture. Made  in the USA. A must have upgrade to have on hand as the firing pin is one of the most abused components in the HK MR 762 & HK417 weapon system. Get the...
    HKP-17768
    $49.95
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  • New - H&K HK 45/45C Extractor - HKP-01298
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    HK45, HK45 Compact Extractor

    H&K Heckler & Koch

    $49.95
    German HK45 & HK45C Extractor - New A great spare and replacement part to have. Compatible With: HK45 Tactical HK45 HK45 Compact Tactical HK45 Compact
    HKP-01298
    $49.95
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  • New - H&K HK P Series Disconnector - HKP-01794 HK P Series Disconnector
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    HK P Series Disconnector

    H&K Heckler & Koch

    $6.95
    HK P Series Disconnector Compatible With These Models In 9mm, .40 S&W, & .357 SIG: HK P30  HK P30L HK P2000 HK P2000SK
    HKP-01794
    $6.95
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  • New - H&K HK USP/USPC/45/45C LEM Hammer - HKP-02705 HK45, HK45 Compact, USP, USP Compact LEM Hammer
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    HK45, HK45 Compact, USP, USP Compact LEM Hammer

    H&K Heckler & Koch

    $75.95
    Heckler and Koch HK USP, USP Compact, HK45, HK45 Compact LEM Hammer LEM (Law Enforcement Modification) hammer designed for compatible HK hammer-fired pistol platforms. Intended for use in LEM trigger configurations and suitable for maintenance,...
    HKP-02705
    $75.95
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  • New - H&K USC (.45 ACP) Carbine Mag Release Axle - HKP-02584
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    HK USC Magazine Release Axle - .45 ACP

    H&K Heckler & Koch

    $18.95
    Heckler and Koch USC .45 ACP Magazine Release Axle Replacement magazine release axle for HK USC .45 ACP platforms. This component is commonly replaced due to wear or breakage and may also be required when configuring compliant magazine release systems...
    HKP-02584
    $18.95
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