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 - TPM Tikka T3 Bolt Handle Upgrade - HKP-20901 Tikka T3 Bolt Handle - Upgrade
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    Tikka T3 Bolt Handle - Upgrade

    Tactical Precision MFG

    Now: $34.95
    Was: $69.99
    TPM Tikka T3 Bolt Handle Upgrade Designed for exact Tikka specs. Tikka T3 upgraded bolt handle is 17-4 stainless steel for optimal strength and durability. This upgraded bolt handle was designed with a 20-degree angle to help improve bolt manipulation...
    HKP-20901
    Now: $34.95
    Was: $69.99
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  • New - HK 416, MR556 Roll Pin for Charging Handle - HKP - HKP-16536
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    HK416, MR556 Charging Handle Roll Pin

    $7.95
    HK 416, MR556 Roll Pin for Charging Handle - HKP This is the shorter one that is used on the inside of the charging handle. There are two of these pins used per charging handle.
    HKP-16536
    $7.95
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  • New - H&K HK MR762/417/G28 Firing Pin - HKP-16613
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    HK417, MR762, G28 Firing Pin

    H&K Heckler & Koch

    $64.95
    H&K HK MR762/417/G28 Firing Pin This firing pin is a must have wear and tear replacement item for your MR762 or HK 417 Firearm. Compatible With: MR762 HK 417 G28
    HKP-16613
    $64.95
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  • New - HKP HK 23E/13E (7.62x51/.308) & (5.56/.223) Firing Pin - Titanium - HKP-17770
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    HK23E, HK13E Firing Pin - Titanium - US

    HKP HK Parts

    $49.95
    HK23E, MM23E, 13E Firing Pin - Titanium Grade 6 weapons grade titanium manufacture. Made in the USA. A must have upgrade to have on hand as the firing pin is one of the most abused components in the HK weapon system. Get the lightest, strongest firing...
    HKP-17770
    $49.95
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  • New - H&K German Ambidextrous Sling Pin Replacement O-Ring - HKP-19985
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    HK German Ambidextrous Sling Pin Replacement O-Ring

    H&K Heckler & Koch

    $5.95
    H&K German Ambidextrous Sling Pin Replacement O-Ring HK ambidextrous sling pin replacement O-ring for all ambidextrous sling pins. Brand new factory German manufacture. This item is a common wear/breakage part that does need to be replaced from time...
    HKP-19985
    $5.95
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  • Out Of Stock
    New - HKP HK UMP, USC Lower Bolt Catch - HKP-19565 HK UMP, USC Lower Bolt Catch

    HK UMP, USC Lower Bolt Catch

    HKP HK Parts

    $22.95
    HK UMP & USC Bolt Catch For Last Round Hold Open New HK USA lower bolt catch. Compatible With: HK UMP HK USC
    HKP-19565
    $22.95
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    $22.95
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  • New - H&K HK Mark 23/SOCOM Firing Pin - HKP-01670
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    HK Mark 23, SOCOM Firing Pin

    H&K Heckler & Koch

    $51.95
    New HK German Mark 23 Firing Pin A great item to have on hand as these are a common wear item.  Compatbile With: Mark 23
    HKP-01670
    $51.95
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  • New - H&K HK Mark 23 Magazine Release - HKP-01772 HK Mark 23 Magazine Release
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    HK Mark 23 Magazine Release

    H&K Heckler & Koch

    $24.99
    Heckler and Koch Magazine Release HK Mark 23    Compatible with: Mark 23  
    HKP-01772
    $24.99
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  • Out Of Stock
    New - H&K HK USP .45 ACP Extractor - HKP-01275 HK USP .45 ACP Extractor

    HK USP .45 ACP Extractor

    H&K Heckler & Koch

    $49.95
    HK German Extractor for USP 45 & USP Tactical .45 Full Size Pistol Compatible With: USP 45 USP 45 Tactical USP 45 Expert, Elite
    HKP-01275
    $49.95
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  • New - HKP HK 21E/11E (7.62x51/.308) Firing Pin - Titanium - HKP-17771
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    HK21E, HK11E Firing Pin - Titanium

    HKP HK Parts

    $49.95
    HK21E, MM21E, 11E Firing Pin - Titanium Grade 6 weapons grade Titanium manufacture. Made  in the USA.  A must have upgrade to have on hand as the firing pin is one of the most abused components in the HK weapon system. Get the lightest,...
    HKP-17771
    $49.95
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  • New - H&K Bolt Locking Lever Pin/Cylindrical Pin - HKP-16913
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    HK Bolt Locking Lever Pin - Cylindrical Pin

    H&K Heckler & Koch

    $4.95
    Heckler and Koch Bolt Locking Lever Pin/Cylindrical Pin New HK91, G3, PTR-91 .308 & HK 93, 33, 53 Bolt Carrier Bolt Locking Lever pin (cylindrical pin). This item holds the locking lever & spring in place on the actual bolt head.
    HKP-16913
    $4.95
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  • New - H&K VP9 Short Slide Release Lever - Right - HKP-22006 HK VP9 Slide Release Lever - Short - Right
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    HK VP9 Slide Release Lever - Short - Right

    H&K Heckler & Koch

    $59.95
    H&K VP9 Slide Release Lever - Short - Right Short version of the right side slide release for VP series pistols. Can be combined with 260431, 50254706, 50239395 Compatible With: VP9 VP9L VP9 Match VP9 Tactical  VP9SK VP9K VP9...
    HKP-22006
    $59.95
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