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 P30 Recoil Rod Compression Spring - HKP-16653
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    HK P30 Recoil Rod Compression Spring

    H&K Heckler & Koch

    $7.95
    H&K HK P30 Recoil Rod Compression Spring
    HKP-16653
    $7.95
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  • Out Of Stock
    New - H&K HK USP Hammer Rebound Spring - HKP-16678

    HK USP Hammer Spring

    H&K Heckler & Koch

    $7.95
    H&K HK USP Hammer Rebound Spring For use on DAO only NOT LEM hammers for the following pistols. Compatible With: HK USP 9mm HK USP .40 S&W HK USP .45 ACP HK USP Compact 9mm HK USP Compact .40 S&W HK USP Compact .357 SIG HK USP Compact .45...
    HKP-16678
    $7.95
    Out Of Stock
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  • New - H&K HK 417/MR556/416/MR776 Pin Look Index - HKP-02639
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    HK416, HK417, MR556, MR762 Pin Look Index

    H&K Heckler & Koch

    $6.95
    H&K HK 417/MR556/416/MR776 Pin Look Index   Compatible With: HK MR556 HK 417 HK MR556  
    HKP-02639
    $6.95
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  • New - HK G36 (5.56/.223) Cocking Handle Bushing - HKP-18368 HK G36 Cocking Handle Bushing - USA
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    HK G36 Cocking Handle Bushing - USA

    USA

    $5.95
    G36 Cocking Handle Bushing - US Made
    HKP-18368
    $5.95
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  • On Sale
    HK MP5, 90 Series Locking Plate for Rollers HK MP5, 90 Series Locking Plate for Rollers
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    HK MP5, 90 Series Locking Plate for Rollers

    Special Weapons

    Now: $3.95
    Was: $8.95
    Special Weapons HK MP5, 90 Series Locking Plate for Rollers SOLD INDIVIDUALLY This item is a common wear item that is great to have on hand as they are one of the top items that break or fail with use and age of the service weapon. Compatible With: MP5,...
    HKP-99399
    Now: $3.95
    Was: $8.95
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    Now: $3.95
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  • New - B&T Takedown Pin Rear - HKP-21727 B&T Takedown Pin Rear
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    B&T Takedown Pin Rear

    B&T Brugger & Thomet

    $12.95
    B&T APC Takedown Pin - Rear Factory B&T rear take down pin for the APC receiver. Compatible With: APC Series Standard receiver Glock receiver Sig receiver
    HKP-21727
    $12.95
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  • New - HKP HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B Sling Pin - HKP-21504 HK UMP, USC Sling Pin, Stock Block B
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    HK UMP, USC Sling Pin, Stock Block B

    HKP HK Parts

    $49.95
    HKP HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B Sling Pin The original thumb screw version for all stock block B's.
    HKP-21504
    $49.95
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  • New - H&K HK MP5, HK SP5 10 Round Magazine Spring - HKP-19454
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    HK MP5, HK94, SP5 Magazine Spring - 10 Round

    H&K Heckler & Koch

    $6.95
    10 Round Magazine Spring - HK MP5, 94, SP5 A must-have repair and replacement part great for spares. Compatible With: All factory spec steel 10 round MP5, 94 style curved magazines
    HKP-19454
    $6.95
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  • New - H&K HK USP Hammer, Hammer Strut Roll Pin - HKP-02268
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    HK USP Hammer, Hammer Strut Roll Pin

    H&K Heckler & Koch

    $5.95
    HK USP Hammer, Hammer Strut Roll Pin This pin installs in the hammer and makes contact with the hammer strut.
    HKP-02268
    $5.95
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  • New - H&K 93/91/33/53/G3 (5.56/.223) & (7.62x51/.308) Bolt Locking Lever Axle Pin - HKP-17624
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    HK33, HK53, HK93, HK91, G3 Bolt Locking Lever Axle Pin

    H&K Heckler & Koch

    $9.95
    HK Bolt Carrier Bolt Locking Lever Axle Pin - G3, 91, PTR & HK93, 33, 53 Brand new HK German bolt locking lever axle pin or cylinder pin for HK locking levers. Compatible With: G3, 91, PTR HK 93, 33, 53 HK21, 23, 11, 13 PSG1, MSG90
    HKP-17624
    $9.95
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  • New - H&K HK P30/SK Axle Pawl - HKP-02214
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    HK P30, P30SK Axle Pawl

    H&K Heckler & Koch

    $8.95
    HK P30/SK Axle Pawl
    HKP-02214
    $8.95
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  • Out Of Stock
    New - H&K MP5 40/10 +2 Roller - HKP-00334 HK MP5 Locking Roller +2 - .40 S&W / 10mm

    HK MP5 Locking Roller +2 - .40 S&W / 10mm

    H&K Heckler & Koch

    $19.99
    MP5 40,10 +2 Roller New HK German MP5 40/10 +2 roller. 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)...
    HKP-00334
    $19.99
    Out Of Stock
    Qty in Cart: 0
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    $19.99
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