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 G3,91,PTR, 93,33 & MP5, 94 Pinned Hammer Strut - HKP-20315 HK MP5, HK90 Series Pinned Hammer Strut
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    HK MP5, HK90 Series Pinned Hammer Strut

    HKP HK Parts

    $13.95
    HKP HK G3,91,PTR, 93,33 & MP5, 94 Pinned Hammer Strut New USA hammer strut for 90 series rifles and pistols. A perfect spare to have on hand. This is a pinned hammer spring shank. Perfect for your HK project or rebuild. Compatible With: HK trigger...
    HKP-20315
    $13.95
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  • 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

    $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
    $9.95
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    $9.95
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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

    $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 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 - 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 - 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
    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
    $10.95
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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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  • New - H&K HK G36/SL8/MP7 Gas Block Pin - HKP-16727
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    HK MP7, G36, SL8 Gas Block Pin

    H&K Heckler & Koch

    $8.95
    H&K HK G36/SL8/MP7 Gas Block Pin The G36/SL8/MP7 gas block pin is the largest out of HK's line up (UMP/USC, 415/MR556, 417/MR762).
    HKP-16727
    $8.95
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  • Out Of Stock
    New - H&K HK MR556/MR762/416/417/AR-15 Selector Detent Spring - HKP-02657

    HK416, MR556, HK417, MR762, AR-15 Selector Detent Spring

    H&K Heckler & Koch

    $9.99
    H&K HK MR556/MR762/416/417/AR15 Selector Detent Spring HK German manufacture. Compatible With: HK MR556 HK 416 HK MR762 HK 417 AR15, M4 & M16
    HKP-02657
    $9.99
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  • New - H&K HK P7M8/P7M13 Piston Retaining Roll Pin - HKP-16435
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    HK P7M8, P7M13 Retaining Roll Pin - Gas Piston

    H&K Heckler & Koch

    $4.95
    HK P7 M8, M13 Piston Retaining Roll Pin
    HKP-16435
    $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 VP9, HK VP40 Backstrap - Small - Black - HKP-16814 HK VP9, P40 Backstrap - Small
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    HK VP9, P40 Backstrap - Small

    H&K Heckler & Koch

    $29.95
    Heckler and Koch Small Black Backstrap for HK VP9, HK VP40 New HK German manufacture. Compatible With: VP9 VP40 VP9F VP9K
    HKP-16814
    $29.95
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