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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  • On Sale
    New - H&K HK MR762/417 Gas Block Pin - HKP-16596
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    HK417, MR762 Gas Block Pin

    H&K Heckler & Koch

    Now: $6.95
    Was: $7.95
    H&K HK MR762/417 Gas Block Pin This is the retaining pin for an HK MR762 gas block. A must have as HK says you have to use new pins once they are removed. Compatible With: HK MR762 HK 417
    HKP-16596
    Now: $6.95
    Was: $7.95
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    Now: $6.95
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  • On Sale
    New - H&K HK USP/USPC/45/45C Sear Roll Pin - HKP-01815
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    HK45, HK45 Compact, USP, USPC Sear Roll Pin

    H&K Heckler & Koch

    Now: $4.95
    Was: $5.95
    Sear Roll Pin HK USP 9mm .40 S&W .45 ACP HK USP Compact 9mm .40 S&W .357 SIG .45 ACP HK45 HK45 Compact
    HKP-01815
    Now: $4.95
    Was: $5.95
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    Now: $4.95
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  • On Sale
    New - H&K HK USPC V1/5/9 Control Lever - HKP-01412 HK USP Compact V1, V5, V9 Control Lever
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    HK USP Compact V1, V5, V9 Control Lever

    H&K Heckler & Koch

    Now: $39.95
    Was: $43.95
    H&K HK USPC V1/5/9 Control Lever This is the lever for the de-cock and safety functions for right-hand shooters (left side of frame). This lever will provide the safety and decock function if you have a Var 1,2 detent installed. This is the most...
    HKP-01412
    Now: $39.95
    Was: $43.95
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    Now: $39.95
    Was: $43.95
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  • On Sale
    New - H&K HK 416/417/MR556/MR762 Bridge - HKP-02676 HK416, MR556, HK417, MR762 Bridge
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    HK416, MR556, HK417, MR762 Bridge

    H&K Heckler & Koch

    Now: $22.95
    Was: $24.95
    Heckler and Koch HK416, HK MR556, HK417, and MR762 Bridge For Lowers Compatible With: HK416, MR556 HK417, MR762
    HKP-02676
    Now: $22.95
    Was: $24.95
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    Now: $22.95
    Was: $24.95
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  • On Sale
    New - HKP HK MP5, SP5 20 Round Magazine Spring - HKP-20687 HK MP5, HK94, SP5 Magazine Spring - 20 Round
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    HK MP5, HK94, SP5 Magazine Spring - 20 Round

    HKP HK Parts

    Now: $5.95
    Was: $6.95
    20 Round Magazine Spring - HK MP5, 94, SP5 Fits all factory spec steel 20 round MP5, 94 style curved magazines. A must-have repair and replacement part great for spares.
    HKP-20687
    Now: $5.95
    Was: $6.95
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    Now: $5.95
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  • On Sale
    New - H&K HK VP9/VP9SK, VP40 Sear Release Catch - Black - HKP-16798
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    HK VP9, VP9SK, VP40 Sear Release Catch

    H&K Heckler & Koch

    Now: $6.95
    Was: $7.95
    Sear Release Catch HK VP9, VP40 Compatible With: HK VP9 HK VP9A1 F HK VP9A1 K HK VP9SK HK VP40
    HKP-16798
    Now: $6.95
    Was: $7.95
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    Now: $6.95
    Was: $7.95
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  • New - H&K HK MR556/416 Roll Pin for Catch On Bolt Carrier - HKP-16847
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    HK416, MR556 Bolt Carrier Roll Pin

    H&K Heckler & Koch

    $6.95
    H&K HK MR556/416 Roll Pin for Catch On Bolt Carrier This roll pin is used in the bolt carrier to secure the catch. Compatible With: HK MR556 HK 416
    HKP-16847
    $6.95
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    $6.95
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  • On Sale
    New - HKP HK 93/53/33 (5.56/.223) Firing Pin - Titanium - HKP-17769
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    HK33, HK53, HK93 Firing Pin - Titanium

    HKP HK Parts

    Now: $44.95
    Was: $49.95
    HK93, 33, 53 Firing Pin - Titanium A must have upgrade to have on hand as the firing pin is one of the most abused components in the HK 93, HK33 & HK53 weapon system. Get the lightest, strongest firing pin available for your HK firearm. Ideal for...
    HKP-17769
    Now: $44.95
    Was: $49.95
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    Now: $44.95
    Was: $49.95
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  • On Sale
    New - H&K HK P7M10/P7M13 Retaining Pin - HKP-16436
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    HK P7M10, P7M13 Retaining Pin

    H&K Heckler & Koch

    Now: $4.45
    Was: $4.95
    H&K HK P7M10/P7M13 Retaining Pin
    HKP-16436
    Now: $4.45
    Was: $4.95
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    Now: $4.45
    Was: $4.95
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  • On Sale
    New - H&K HK USP/USPC .45 ACP New Style Extractor - HKP-01478 HK USP, USP Compact .45 ACP New Style Extractor
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    HK USP, USP Compact .45 ACP New Style Extractor

    H&K Heckler & Koch

    Now: $53.95
    Was: $59.95
    New Style Extractor New HK German part with red loaded chamber indicator.  Compatible with: USP 45, USP 45 Tactical USP Compact .45, USPC .45 Tactical USP Expert
    HKP-01478
    Now: $53.95
    Was: $59.95
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    Now: $53.95
    Was: $59.95
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  • On Sale
    New - H&K HK MR556/MR762/416 Fire Control Detent Stop Pin - HKP-15272
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    HK416, MR556, MR762 Fire Control Detent Stop Pin

    H&K Heckler & Koch

    Now: $18.95
    Was: $20.95
    H&K HK MR556/MR762/416 Fire Control Detent Stop Pin HK German manufacture. Compatible With: HK MR556 HK416 HK MR762
    HKP-15272
    Now: $18.95
    Was: $20.95
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    Now: $18.95
    Was: $20.95
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  • On Sale
    New - MKE HK MP5 Elbow Spring for Trigger - HKP-22225 MKE HK MP5 Elbow Spring for Trigger MKE HKP-22225
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    HK MP5, HK90 Series Trigger Spring - SEF, Navy

    MKE

    Now: $2.45
    Was: $8.95
    MKE SEF & Navy 3 Position Trigger Spring The MKE trigger spring is an essential upgrade for anyone dealing with worn or broken trigger return springs in surplus trigger packs or as spares for all 90 series owners. These springs are fully compatible...
    HKP-22225
    Now: $2.45
    Was: $8.95
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    Now: $2.45
    Was: $8.95
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