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 HK416/MR556 Magazine Catch - HKP-15458 HK416, MR556 Magazine Catch

    HK416, MR556 Magazine Catch

    H&K Heckler & Koch

    $50.95
    H&K HK MR556/416 Magazine Catch New HK German manufacture magazine catch for the HK 416 and MR556 family of firearms. Compatible With: HK MR556 HK 416
    $50.95
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    $50.95
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  • New - H&K HK VP9/VP9SK/VP9 Match/Tactical, HK VP40/Tactical Magazine Release/Catch - Black - HKP-16817
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    HK VP9, VP9SK, VP9 Match, VP9 Tactical, VP40, VP40 Tactical Magazine Release/Catch

    H&K Heckler & Koch

    $24.95
    H&K HK VP9/VP9SK/VP9 Match/Tactical, HK VP40/Tactical Magazine Release/Catch New HK German manufacture. Compatible With: HK VP9, VP9 Tactical HK VP9SK HK VP40, VP40 Tactical
    $24.95
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  • New - H&K HK USP 9mm / .40 S&W High Capacity Magazine Locking Plate - HKP-02165 HK USP Magazine Locking Plate - 9mm / .40 S&W - High Capacity
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    HK USP Magazine Locking Plate - 9mm / .40 S&W - High Capacity

    H&K Heckler & Koch

    $6.95
    HK USP 9mm / .40 S&W High Capacity Magazine Locking Plate Compatible With: HK USP 9mm HK USP .40
    $6.95
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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
    $13.95
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  • Out Of Stock
    New - HKP HK Mark 23, SOCOM Titanium Firing Pin - HKP-17803

    HK Mark 23, SOCOM Firing Pin - Titanium

    HKP HK Parts

    $49.95
    Ultimate Firing Pin Mark 23, Socom - Titanium - Grade 6 A solid billet CNC offering at 40+% lighter than comparable steel firing pins. Our titanium firing pins travel faster in the slide, delivering a quicker lock time & enhancing accuracy. Titanium...
    $49.95
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  • New - H&K HK MR556/MR762/416 Forward Assist Assembly - HKP-16528 HK416, MR556, MR762 Forward Assist Assembly
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    HK416, MR556, MR762 Forward Assist Assembly

    H&K Heckler & Koch

    $74.95
    H&K HK MR556/MR762/416 Forward Assist Assembly H&K Germany factory MR556 & HK416 forward assist assembly complete. Compatible With: HK MR556 HK 416 HK MR762
    $74.95
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    $74.95
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  • New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Complete Firing Pin Assembly - HKP-00609
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    HK UMP, USC Firing Pin - Complete Assembly - .40 S&W / .45 ACP / 9mm

    H&K Heckler & Koch

    $82.95
    HK German USC & UMP Firing Pin Assembly Complete A great spare to have on hand as this item is a hard-to-find replacement part. Compatible With: USC 45 UMP 45 UMP 40 UMP 9mm ALL USC Conversions ALL UMP MG's
    $82.95
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  • Out Of Stock
    New - HKP Semi Auto Shelf, Hanger Block For Receiver - HKP-17572 HK Semi Auto Shelf, Hanger Block For Receiver

    HK Semi Auto Shelf, Hanger Block For Receiver

    HKP HK Parts

    $13.95
    HK Semi Auto Shelf Weldment, Hanger Block Weldment HK Semi Auto Shelf, Hanger Block to HK's factory specifications for c/p trigger housings. Weld on shelf that is the needed receiver block that welds to the rearward portion of the magwell to allow the...
    $13.95
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    $13.95
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  • New - H&K HK VP9/VP9SK, HK VP40 Trigger Bar - HKP-16780 HK VP9, VP9SK, VP40 Trigger Bar
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    HK VP9, VP9SK, VP40 Trigger Bar

    H&K Heckler & Koch

    $55.95
    H&K HK VP9/VP9SK, HK VP40 Trigger Bar   Compatible With: HK VP9 HK VP9SK HK VP40
    $55.95
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    $55.95
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  • New - H&K HK VP9/VP9SK, VP40 Left Side Slide Release Lever - Black - HKP-16787 HK VP9, VP9SK, VP40 Left Side Slide Release Lever
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    HK VP9, VP9SK, VP40 Left Side Slide Release Lever

    H&K Heckler & Koch

    $19.95
    H&K HK VP9/VP9SK, VP40 Left Side Slide Release Lever - Black New HK VP series German left side slide release lever for slide. Compatible With: HK VP9, VP9L HK VP9SK HK VP9A1 F HK VP9A1 K HK VP40
    $19.95
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    $19.95
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  • New - H&K HK P30/P2000 Trigger Bar Detent Spring - HKP-01799
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    HK P30, P2000 Trigger Bar Detent Spring

    H&K Heckler & Koch

    $5.95
    HK P30 & P2000 Trigger Bar Detent Spring Compatible With These Models In 9mm, .40 S&W, & .357 SIG: HK P30 HK P30L HK P30SK HK P2000 HK P2000SK
    $5.95
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    $5.95
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  • New - Nefarious Arms HK G36/SL8/HK 416/MR556 Gas Piston - HKP-21364 HK 416, MR556, G36, SL8 Gas Piston
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    HK 416, MR556, G36, SL8 Gas Piston

    Nefarious Arms

    $74.95
    Nefarious Arms HK G36/SL8/HK 416/MR556 Gas Piston A great spare, upgrade, or replacement part for your HK. Includes 3 piston rings for a complete drop in replacement part. TiN coated gold for added protection and an overall great part.  Compatible...
    $74.95
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