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 VP9SK/P30SK/P2000SK 9mm Magazine Locking Plate - HKP-16650 HK VP9SK, P30SK, P2000SK Magazine Locking Plate - 9mm
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    HK VP9SK, P30SK, P2000SK Magazine Locking Plate - 9mm

    H&K Heckler & Koch

    $8.95
    HK P2000SK, VP9SK & P30SK 9mm 10 Round Magazine Locking Plate For Magazine Works with the P2000SK, VP9SK and P30SK sub compact (SK) magazine models only. Compatible With: HK P30 SK HK P2000 SK HK VP9SK
    HKP-16650
    $8.95
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  • New - H&K HK P30SK Firing Pin Safety Pin - HKP-18524 HK P30SK Firing Pin Safety Pin
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    HK P30SK Firing Pin Safety Pin

    H&K Heckler & Koch

    $4.95
    H&K HK P30SK Firing Pin Safety Pin This is a factory original HK part manufactured in Germany.
    HKP-18524
    $4.95
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  • New - H&K HK MR556/416 Firing Pin - HKP-00045
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    HK416, MR556 Firing Pin

    H&K Heckler & Koch

    $54.95
    H&K HK MR556/416 Firing Pin   New HK German manufactured. This is a great item to have on hand as the firing pin is one of the most abused components in the HK MR556 and HK 416 weapon systems.   Compatible With: HK MR556 HK 416 HK CR556 HK...
    HKP-00045
    $54.95
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  • New - H&K HK MR556/MR762/416 Forward Assist Pin - HKP-02662 HK416, MR556, MR762 Forward Assist Pin
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    HK416, MR556, MR762 Forward Assist Pin

    H&K Heckler & Koch

    $4.95
    H&K HK MR556/MR762/416 Forward Assist Pin Compatible With: HK MR556 HK 416 HK MR762
    HKP-02662
    $4.95
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  • New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Lower Axle - HKP-01893
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    HK UMP, USC Lower Axle

    H&K Heckler & Koch

    $9.95
    HK UMP & USC Lower Axle - German 3 X lower axle pins are used for each trigger group or lower all pins are the same size, except the mag release axle on the USC model. 
    HKP-01893
    $9.95
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  • New - H&K HK VP9/VP9SK, VP40 Trigger Stop Bolt - HKP-16784
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    HK VP9, VP9SK, VP40 Trigger Stop Bolt

    H&K Heckler & Koch

    $14.95
    H&K HK VP9/VP9SK, VP40 Trigger Stop Bolt Stop Bolt for Trigger VP9, VP40. Compatible With: HK VP9 HK VP9SK HK VP40 HK VP9A1 F HK VP9A1 K
    HKP-16784
    $14.95
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    $14.95
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  • New - HKP HK MP5 9mm Magazine Locking Plate - Red - HKP-18303 HK MP5 Magazine Locking Plate - 9mm - Red
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    HK MP5 Magazine Locking Plate - 9mm - Red

    HKP HK Parts

    $7.95
    HKP HK MP5, MP5K 9mm Magazine Locking Plate - HK Red Teflon infused glass filled polymer red colored locking plate that will work with all HK MP5, MP5K 9mm curved magazines. A drop in item that allows you to swap the locking plate to a red unit. A great...
    HKP-18303
    $7.95
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  • New - H&K -6 Roller For Bolt Head 7.94mm - Under-sized - HKP-00342 HK -6 Roller For Bolt Head 7.94mm - Under-sized
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    HK -6 Roller For Bolt Head 7.94mm - Under-sized

    H&K Heckler & Koch

    $27.95
    H&K -6 Roller For Bolt Head 7.94mm - Under-sized New HK German -6 roller that measures 7.94mm. For use with all HK 90 series firearms.  Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way...
    HKP-00342
    $27.95
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  • On Sale
    Used - H&K German Bayonet Adapter With Hardware - USED - BLEMISHED - HKP-00021-B HK Bayonet Adapter - W/ Screw and Hardware - German - USED
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    HK Bayonet Adapter - W/ Screw and Hardware - German - USED

    H&K Heckler & Koch

    Now: $119.95
    Was: $149.95
    H&K German Bayonet Adapter - W/ Screw & Hardware - USED   USED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. DOES NOT COME WITH HARDWARE HK German Bayonet Adapter W/ Screw...
    HKP-00021-USED
    Now: $119.95
    Was: $149.95
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    Now: $119.95
    Was: $149.95
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  • New - H&K SP5K 9mm Drop In Paddle Mag Release Upgrade Kit - HKP-18082 HK SP5K 9mm Drop In Paddle Mag Release Upgrade Kit
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    HK SP5K 9mm Drop In Paddle Mag Release Upgrade Kit

    H&K Heckler & Koch

    $129.95
    German HK SP5K Anti-Rattle Roller Tipped Paddle Magazine Release Kit No modifications, no refinishing...complete drop-in kit included New HK German & USA made paddle mag release kit for the HK SP5K. This kit will allow any end-user to quickly...
    HKP-18082
    $129.95
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  • New - H&K Grip Screw - HKP-01725
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    HK MP5, SP89, HK91, HK93, HK94 Grip Screw

    H&K Heckler & Koch

    $8.95
    H&K Grip Screw New HK grip screw that is now out of production. Great for a spare. Compatible With: HK91 HK93 HK94 SP89
    HKP-01725
    $8.95
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  • New - GSG9 HK SL8, HK G36 Magazine Release Axle Pin - HKP-18255 HK SL8, G36 Magazine Release Axle Pin
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    HK SL8, G36 Magazine Release Axle Pin

    GSG9

    $10.95
    HK G36 & SL8 Magazine Release Axle - USA Mag release axle for all G36 & SL8 models. A must-have spare part. Made in the USA. Compatible With: G36 G36K G36K SL8 Other custom G36 type builds
    HKP-18255
    $10.95
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