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 - HKP HK VP9/VP9SK/VP40 Firing Pin Striker - HKP-20464 HK VP9, VP9SK, VP40 Firing Pin Striker
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    HK VP9, VP9SK, VP40 Firing Pin Striker

    HKP HK Parts

    $39.95
    HKP HK VP9/VP9SK/VP40 Firing Pin Striker This firing pin fits all models of VP series pistols. Compatible With: HK VP9, VP9 tactical, VP9L, VP9 OR HK VP9SK VP40, VP40 tactical
    HKP-20464
    $39.95
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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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  • New - H&K HK P7 PSP/P7M8 Magazine Locking Plate - HKP-01313 HK P7 PSP, P7M8 Magazine Locking Plate
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    HK P7 PSP, P7M8 Magazine Locking Plate

    H&K Heckler & Koch

    $12.95
    HK P7 PSP/P7M8 Magazine Locking Plate Compatible With: PSPP7M8
    HKP-01313
    $12.95
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    $12.95
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  • HK MP5, G3, MKE AP5 Elbow Spring with Roller - Full-Auto HK MP5, G3, MKE AP5 Elbow Spring with Roller - Full-Auto
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    HK MP5, G3, MKE AP5 Elbow Spring with Roller - Full-Auto

    MKE

    $4.95
    MKE AP5, HK MP5, G3 Full-Auto Elbow Spring with Roller This elbow spring is manufactured by MKE from steel and is used in MP5 and G3 pattern trigger packs. It provides proper tension and function for the trigger pack elbow and is suitable for...
    HKP-22489
    $4.95
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    $4.95
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  • New - H&K VP Short Slide Release Lever - Left - HKP-22000 HK VP9 Short Slide Release Lever - Left
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    HK VP9 Short Slide Release Lever - Left

    H&K Heckler & Koch

    $54.95
    H&K VP Short Slide Release Lever - Left Short Left side slide release for VP series pistols. Can be combined with 260498, 50254710, 50239708. Compatible With: VP9/VP9 Tactical  VP9 Match VP9L VP9SK VP9K VP9 A1 VP40    
    HKP-22000
    $54.95
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  • New - USA HK UMP Left Hammer Spring - HKP-20840 HK UMP Hammer Spring - Left
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    HK UMP Hammer Spring - Left

    USA

    $9.95
    USA HK UMP Left Hammer Spring New U.S hammer spring- left side A high wear item that needs to be changed when light firing pin strikes develop on your USC or UMP firearm. Compatible With:  HK UMP models 45, .40 & 9mm USC .45 and other...
    HKP-20840
    $9.95
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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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    $51.95
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  • New - H&K G36/SL8 (5.56/.223) Cocking Handle Spring - HKP-01862
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    HK G36, SL8 Cocking Handle Spring

    H&K Heckler & Koch

    $10.95
    HK German G36 Cocking Handle Spring - All Variants Compatible With: G36 - all variants SL8 - all variants
    HKP-01862
    $10.95
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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 - HKP HK MP5 (.40 S&W) Locking Roller -2 - HKP-17563
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    HK MP5 Locking Roller -2 - .40 S&W

    HKP HK Parts

    $11.95
    HK US MP540 Undersized Locking Roller, -2 The proper roller size is essential for proper headspacing of bolt gap. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the size you need...
    HKP-17563
    $11.95
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  • New - HKP Front Sight Tower Ambi Sling Attachment Weldment - HKP-17881 HK MP5, MP5K Sling Attachment Weldment - Ambi - Front End
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    HK MP5, MP5K Sling Attachment Weldment - Ambi - Front End

    HKP HK Parts

    $14.95
    HKP Front Sight Tower Ambi Sling Attachment Weldment Ambi sling loop that is welled and installed on all MP5F model front sight tower. A great upgrade for that custom build or for those that want to have the ability to have an ambidextrous sling loop at...
    HKP-17881
    $14.95
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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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