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 P7M13 Magazine Follower - Black - HKP-02364
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    HK P7M13 Magazine Follower

    H&K Heckler & Koch

    $49.95
    HK P7M13 Magazine Follower All steel construction, brand new HK German manufacture.  Compatible With: HK P7M13 magazines
    HKP-02364
    $49.95
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  • New - H&K HK 45/P30SK/P2000 Lockout Device Ball Bearing - HKP-02273
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    H45, KP30SK, P2000 Lockout Device Ball Bearing

    H&K Heckler & Koch

    $4.95
    HK 45, P30SK, & P2000 Lockout Device Ball Bearing   Compatible With: HK45, HK45 Tactical HK45C, HK45C Tactical HK P30SK P2000 & P2000SK
    HKP-02273
    $4.95
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    $4.95
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  • New - H&K P30/L Loaded Chamber Indicator Compression Spring - HKP-02220
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    HK P30, P30L Loaded Chamber Indicator Compression Spring

    H&K Heckler & Koch

    $5.95
    H&K P30/L Loaded Chamber Indicator Compression Spring  
    HKP-02220
    $5.95
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  • New - H&K HK MR556/416 Axis Rivet - HKP-16776
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    HK416, MR556 Axis Rivet

    H&K Heckler & Koch

    $4.95
    H&K HK MR556/416 Axis Rivet New HK German HK 416 Rivet. Compatible With: HK MR556 HK 416  
    HKP-16776
    $4.95
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  • New - GSG9 HK G36/SL8 (5.56/.223) Barrel Retaining Nut - HKP-18252 HK G36, SL8  Barrel Retaining Nut
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    HK G36, SL8 Barrel Retaining Nut

    GSG9

    $53.00
    HK G36 & SL8 Barrel Retaining Nut - USA Made in the USA. Compatible With: SL8 (all models & variants) G36E G36K G36C All other G36 Variants
    HKP-18252
    $53.00
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    $53.00
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  • New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Hammer Spring - Left - HKP-01898
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    HK UMP, USC Hammer Spring - Left

    H&K Heckler & Koch

    $13.95
    HK UMP & USC - Left Side Hammer Spring For All Lowers 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 conversion...
    HKP-01898
    $13.95
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  • Out Of Stock
    New - H&K 21 (7.62x51/.308) Carry Handle Axle Elbow Spring - HKP-00578

    HK21 Carry Handle Axle Elbow Spring

    HKP HK Parts

    $11.95
    HK21 & 21E Carry Handle Axle Elbow Spring This part is needed and is used in conjunction with the actual carry handle, axle, axle spring, and (2) E-clips. This is the elbow spring portion of the needed part for the assembly.
    HKP-00578
    $11.95
    Out Of Stock
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    $11.95
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  • New - HK Carry Handle Axle - HKP-00577
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    HK21 Carry Handle Axle

    HKP HK Parts

    $16.95
    HK Carry Handle Axle
    HKP-00577
    $16.95
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    $16.95
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  • New - H&K MP5 & MP5K Stop Pin For Recoil Rod - HKP-17421
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    HK MP5, MP5K Recoil Rod Stop Pin

    H&K Heckler & Koch

    $14.99
    HK German MP5 & MP5K Recoil Rod Stop Pin New HK German manufacture a great spare or replacement item to have on hand. Compatible With: MP5, 94, SP5 MP5K, SP89, SP5KClones or other custom builds
    HKP-17421
    $14.99
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  • On Sale
    HK Trigger Pack Ejector Lever Axle - USED HK Trigger Pack Ejector Lever Axle - USED
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    HK Trigger Pack Ejector Lever Axle - USED

    H&K Heckler & Koch

    Now: $12.95
    Was: $19.95
    HK Trigger Pack Ejector Lever Axle - USED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK German ejector lever axle pin for all HK trigger packs. This is the factory correct axle pin that holds the...
    HKP-01091-USED
    Now: $12.95
    Was: $19.95
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    Now: $12.95
    Was: $19.95
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  • New - H&K CC9 Firing Pin Spring Retainer - HKP-22139
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    HK CC9 Firing Pin Spring Retainer

    H&K Heckler & Koch

    $5.95
    H&K CC9 Firing Pin Spring Retainer Manufactured in Germany by H&K, this part secures the firing pin spring to the firing pin assembly, ensuring proper striker function during cycling. Compatible With: HK CC9    
    HKP-22139
    $5.95
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  • New - H&K CC9 Firing Pin Spring - HKP-22138
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    HK CC9 Firing Pin Spring

    H&K Heckler & Koch

    $5.95
    H&K CC9 Firing Pin Spring Manufactured by H&K, this firing pin spring for the H&K CC9 pistol applies consistent tension to the firing pin, ensuring reliable ignition. Compatible With: HK CC9  
    HKP-22138
    $5.95
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