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 USP Series Old Style Firing Pin Block Spring - HKP-02149
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    HK USP Series Firing Pin Block Spring - Old Style

    H&K Heckler & Koch

    $9.95
    HK USP Series Old Style Firing Pin Block Spring In order to use the new firing pin block spring, you also have to upgrade the firing pin, firing pin block, as well as the firing pin block spring. HK part #214192 has been replaced with...
    $9.95
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  • New - HKP MP5 & HK94 Vertical K Grip Adapter - HKP-00175 HK MP5, HK94 Grip Adapter - K Style
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    HK MP5, HK94 Grip Adapter - K Style

    HKP HK Parts

    $49.95
    HK Vertical K Grip Adapter For HK MP5 & HK94 (Adapter Only) This is the adapter needed to add an MP5K K grip to your HK94, MP5, or clone.
    $49.95
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  • New - H&K HK VP9SK/P30SK/P2000SK 9mm Magazine Locking Plate - HKP-16650 HK VP9SK, P30SK, P2000SK Magazine Locking Plate - 9mm
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    HK VP9SK, P30SK, P2000SK Magazine Locking Plate - 9mm

    H&K Heckler & Koch

    $8.95
    HK P2000SK, VP9SK & P30SK 9mm 10 Round Magazine Locking Plate For Magazine Works with the P2000SK, VP9SK and P30SK sub compact (SK) magazine models only. Compatible With: HK P30 SK HK P2000 SK HK VP9SK
    $8.95
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  • New - H&K HK MR556/416 Firing Pin - HKP-00045
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    HK416, MR556 Firing Pin

    H&K Heckler & Koch

    $54.95
    H&K HK MR556/416 Firing Pin   New HK German manufactured. This is a great item to have on hand as the firing pin is one of the most abused components in the HK MR556 and HK 416 weapon systems.   Compatible With: HK MR556 HK 416 HK CR556 HK...
    $54.95
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  • New - H&K HK MR556/MR762/416 Forward Assist Pin - HKP-02662 HK416, MR556, MR762 Forward Assist Pin
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    HK416, MR556, MR762 Forward Assist Pin

    H&K Heckler & Koch

    $4.95
    H&K HK MR556/MR762/416 Forward Assist Pin Compatible With: HK MR556 HK 416 HK MR762
    $4.95
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    $4.95
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  • New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Lower Axle - HKP-01893
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    HK UMP, USC Lower Axle

    H&K Heckler & Koch

    $9.95
    HK UMP & USC Lower Axle - German 3 X lower axle pins are used for each trigger group or lower all pins are the same size, except the mag release axle on the USC model. 
    $9.95
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  • New - HKP HK G3,91,PTR, 93,33 & MP5, 94 Pinned Hammer Strut - HKP-20315 HK MP5, HK94, HK91, G3, HK93, HK33 Pinned Hammer Strut
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    HK MP5, HK94, HK91, G3, HK93, HK33 Pinned Hammer Strut

    HKP HK Parts

    $13.95
    HKP HK G3,91,PTR, 93,33 & MP5, 94 Pinned Hammer Strut New USA hammer strut for 90 series rifles and pistols. A perfect spare to have on hand. This is a pinned hammer spring shank. Perfect for your HK project or rebuild. Compatible With: HK trigger...
    $13.95
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  • New - H&K HK VP9/VP9SK, VP40 Trigger Stop Bolt - HKP-16784
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    HK VP9, VP9SK, VP40 Trigger Stop Bolt

    H&K Heckler & Koch

    $14.95
    H&K HK VP9/VP9SK, VP40 Trigger Stop Bolt Stop Bolt for Trigger VP9, VP40. Compatible With: HK VP9 HK VP9SK HK VP40 HK VP9A1 F HK VP9A1 K
    $14.95
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  • New - H&K HK G36/SL8/MP7 Gas Block Pin - HKP-16727
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    HK MP7, G36, SL8 Gas Block Pin

    H&K Heckler & Koch

    $8.95
    H&K HK G36/SL8/MP7 Gas Block Pin The G36/SL8/MP7 gas block pin is the largest out of HK's line up (UMP/USC, 415/MR556, 417/MR762).
    $8.95
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  • New - H&K MP5 & MP5K 9mm Anti-Rattle Roller Tipped "Paddle" Magazine Release - HKP-00117 HK MP5, MP5K Magazine Release Paddle - Anti-Rattle Roller-Tip - 9mm
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    HK MP5, MP5K Magazine Release Paddle - Anti-Rattle Roller-Tip - 9mm

    H&K Heckler & Koch

    $64.95
    German HK MP5, MP5K Anti-Rattle Roller Tipped "Paddle" Magazine Release Factory German Paddle mag release for all 9mm MP5, MP5K HK builds. Our parts are made by HK in Germany and are factory-fresh production. Compatible With: MP5, 94, HK SP5 MP5K, SP89,...
    $64.95
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  • New - HKP HK MP5 9mm Magazine Locking Plate - Red - HKP-18303 HK MP5 Magazine Locking Plate - 9mm - Red
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    HK MP5 Magazine Locking Plate - 9mm - Red

    HKP HK Parts

    $7.95
    HKP HK MP5, MP5K 9mm Magazine Locking Plate - HK Red Teflon infused glass filled polymer red colored locking plate that will work with all HK MP5, MP5K 9mm curved magazines. A drop in item that allows you to swap the locking plate to a red unit. A great...
    $7.95
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  • New - H&K VP9, HK VP40 Backstrap - Small - Black - HKP-16814 HK VP9, HK VP40 Backstrap - Small - Black
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    HK VP9, HK VP40 Backstrap - Small - Black

    H&K Heckler & Koch

    $29.95
    H&K VP9, HK VP40 Backstrap - Small - Black New HK German manufacture. Compatible With: HK VP9 HK VP40 HK VP9A1 F HK VP9A1 K
    $29.95
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