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 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

    Now: $4.45
    Was: $4.95
    Heckler and Koch's Forward Assist Pin for HK416, HK MR556, and HK MR762 Compatible With: HK416, MR556 HK MR762
    HKP-02662
    Now: $4.45
    Was: $4.95
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  • MKE HK MP5/MP5K Magazine Release Bushing MKE HKP-22283 MKE HK MP5/MP5K Magazine Release Bushing MKE HKP-22283
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    HK MP5, HK90 Series Paddle Mag Release Bushing - Full Auto

    MKE

    $2.95
    MKE Magazine Release Bushing for HK MP5, MP5K and HK90 Firearms This part is for use in all HK90-series Heckler and Koch weapon systems and is used for installing a paddle mag release. This is not for use on semi-auto HK builds. This part is intended for...
    HKP-22283
    $2.95
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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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    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

    Now: $7.95
    Was: $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
    Now: $7.95
    Was: $8.95
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    New - B&T Ambidextrous Sling Pin - Small - HKP-16886 B&T Ambidextrous Sling Pin - Small
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    B&T Ambidextrous Sling Pin - Small

    B&T Brugger & Thomet

    Now: $53.95
    Was: $58.95
    B&T Ambidextrous Sling Pin - Small Replaces the small push pin to allow a sling attachment point on either the left or right side of the firearm. Each measures: 6x29mm with rubber o-ring and net screw.
    HKP-16886
    Now: $53.95
    Was: $58.95
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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

    Now: $49.95
    Was: $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
    Now: $49.95
    Was: $54.95
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  • On Sale
    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

    Now: $9.95
    Was: $10.95
    GSG9 Magazine Release Axle - USA made for HK G36 and HK SL8 Mag release axle for all G36 and SL8 models. A must-have spare part. Made in the USA. Compatible With: G36 G36K SL8 Other custom G36 type builds
    HKP-18255
    Now: $9.95
    Was: $10.95
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  • On Sale
    New - H&K HK MR556 Front Lower Receiver Locking Pin - HKP-02663 HK416, MR556 Takedown Pin - Front - A1 Style
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    HK416, MR556 Takedown Pin - Front - A1 Style

    H&K Heckler & Koch

    Now: $58.95
    Was: $64.95
    H&K HK MR556 Front Lower Receiver Locking Pin With Spring Loaded Detent This part is the front (large) takedown pin with ball detent and locking mechanism installed. The idea behind this type of system is to decrease the movement of the upper and...
    HKP-02663
    Now: $58.95
    Was: $64.95
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  • On Sale
    New - MKE HK MP5/K 9mm Extractor - HKP-21919 HK MP5, SP5K Extractor - 9mm
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    HK MP5, SP5K Extractor - 9mm

    MKE

    Now: $16.95
    Was: $19.95
    MKE HK MP5/K 9mm Extractor Keep your MP5 or MP5K running strong with this MKE 9mm extractor. Perfect for replacing a worn part or completing a build, it’s made to HK specs for smooth, reliable performance you can count on. Compatible With: HK MP5,...
    HKP-21919
    Now: $16.95
    Was: $19.95
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  • On Sale
    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

    Now: $13.95
    Was: $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
    Now: $13.95
    Was: $14.95
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  • On Sale
    HK45, HK45C, USP Compact Magazine Follower HK45, HK45C, USP Compact Magazine Follower
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    HK45, HK45C, USP Compact Magazine Follower

    H&K Heckler & Koch

    Now: $8.95
    Was: $9.95
    HK USPC, 45, & 45C Magazine Follower A great spare to have on hand as the follower is a wear and replacement part. Do not forget to order spare magazine springs while you are at it. HK German manufacture. Compatible With: HK USPC .45 HK USPC .45...
    HKP-02249-M
    Now: $8.95
    Was: $9.95
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    New - H&K HK USP/USPC/45/45C New Style Hammer - HKP-01256
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    HK45, HK45 Compact, USP, USP Compact New Style Hammer

    H&K Heckler & Koch

    Now: $56.95
    Was: $62.95
    H&K HK USP/USPC/45/45C New Style Hammer Will work for USP/USPC variants 1-4, 9 & 10. This part replaces the older HK hammer without the sear cutout (part #214825). Compatible With: HK USP 9mm HK USP .40 S&W HK USP .45 ACP HK USP Compact...
    HKP-01256
    Now: $56.95
    Was: $62.95
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