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/45/45C Trigger Bar Detent - HKP-01922
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    HK45, HK45 Compact, USP Trigger Bar Detent

    H&K Heckler & Koch

    $5.95
    Trigger Bar Detent Compatible With: HK45, HK45 Tactical HK45C, HK45C Tactical 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 ACP All USP Tactical, Elite & Expert...
    HKP-01922
    $5.95
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  • New - H&K HK 45/P30/P2000/USPC Recoil Spring Washer Retainer - HKP-02428
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    HK45, P30, P2000, USP Stop Disc - Recoil Spring

    H&K Heckler & Koch

    $4.95
    HK 45, P30, P2000, & USPC Recoil Spring Washer Retainer This disk supports and keeps the recoil spring centered and captive on the recoil rod itself.  Compatible With: HK45, HK45 Tactical HK45 Compact, HK45 Compact Tactical USP Compact, USP...
    HKP-02428
    $4.95
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    $4.95
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  • New - H&K HK416/417/MR556/MR762 Catch Spring - Magazine - HKP-02620
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    HK416, MR556, HK417, MR762 Magazine Catch Spring

    H&K Heckler & Koch

    $9.95
    HK MR556, HK 416 & MR762 & 417 Magazine Catch Spring HK German manufacture. Compatible With: HK MR556 HK 416, M27 HK MR762 HK 417, G28 AR15, M4 & M16 firearms
    HKP-02620
    $9.95
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  • MKE HK MP5/MP5K Magazine Release Bushing MKE HKP-22283 MKE HK MP5/MP5K Magazine Release Bushing MKE HKP-22283
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    HK MP5, MP5K, G36, HK33, HKK53, HK93, HK417 Magazine Release Bushing - Full Auto

    MKE

    $2.59
    MKE HK MP5/MP5K Magazine Release Bushing This part is for use in all 90-series H&K weapon systems and is used for installing a paddle mag release. This is not for use on semi-auto HK builds. This part is intended for full-auto conversions only...
    HKP-22283
    $2.59
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    $2.59
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  • New - H&K HK P7M8/P7M13 Detent, Piston - HKP-16327
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    HK P7M8, P7M13 Detent - Gas Piston

    H&K Heckler & Koch

    $9.95
    H&K HK P7M8/P7M13 Detent, Piston Compatible With: P7M8 P7M13
    HKP-16327
    $9.95
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  • New - H&K HK USP/USPC Lanyard Loop Insert - HKP-01935 HK USP, USP Compact Lanyard Loop Insert
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    HK USP, USP Compact Lanyard Loop Insert

    H&K Heckler & Koch

    $13.95
    HK USP/USPC Lanyard Loop Insert Compatible With: HK USP 9mm HK USP .40 HK USP Compact 9mm HK USP Compact .40 / .357 HK USP Compact .45
    HKP-01935
    $13.95
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    $13.95
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  • On Sale
    New - HKP HK VP9/VP40 Enhanced Support Sleeve - Black - BLEMISHED - HKP-18677-BL-B HK VP9, VP40 Enhanced Support Sleeve - Black - BLEMISHED
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    HK VP9, VP40 Enhanced Support Sleeve - Black - BLEMISHED

    HKP HK Parts

    Now: $9.95
    Was: $19.95
    HKP HK VP9/VP40 Enhanced Support Sleeve COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The support sleeve in the VP series pistols is a crucial component that...
    HKP-18677-BL-B
    Now: $9.95
    Was: $19.95
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    Now: $9.95
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  • New - H&K HK VP9/VP9SK, VP40 Main Spring For Firing Pin - HKP-16829
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    HK VP9, VP9SK, VP40 Firing Pin Spring

    H&K Heckler & Koch

    $9.95
    H&K HK VP9/VP9SK, VP40 Main Spring For Firing Pin German HK. Compatible With: VP9 VP9 Tactical VP9SK VP40 VP40 Tactical
    HKP-16829
    $9.95
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  • New - H&K HK MR556/762/416/417 Bolt Catch Spring - HKP-16661
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    HK416, HK417, MR556, MR762 Bolt Catch Spring

    H&K Heckler & Koch

    $6.95
    H&K HK MR556/762/416/417 Bolt Catch Spring Compatible With: HK MR556 HK 416 HK MR762 HK 417
    HKP-16661
    $6.95
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    $6.95
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  • New - H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Sear Spring - HKP-01866
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    HK G36, UMP Sear Spring

    H&K Heckler & Koch

    $8.95
    HK UMP, USC, G36, & SL8 Sear Spring This part is used in conjunction with the sear in the trigger body of the lower.  
    HKP-01866
    $8.95
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  • New - HKP HK 416 Ejection Port Axle - HKP-20039
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    HK416 Ejection Port Axle

    H&K Heckler & Koch

    $4.95
    Ejection Port Axle - Steel- HK 416 New HK USA manufacture for the HK 416 family of firearms. This is the axle that holds the ejection port cover in place on the upper receiver. 
    HKP-20039
    $4.95
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    $4.95
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  • HK45 Thread Protector - .578x28 RH HK45 Thread Protector - .578x28 RH
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    HK45 Thread Protector - .578x28 RH

    HKP HK Parts

    $19.95
    HKP HK45 .45 ACP Thread Protector - Threaded .578x28 RH U.S.-made titanium thread protector designed for .45 ACP barrels threaded .578x28 right-hand. Features a fully hooded profile that extends over the muzzle to protect exposed threads and the barrel...
    HKP-19514
    $19.95
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    $19.95
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