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 - HK33, HK93, HK91, HK51, HK G3 5.56 / .223 and 7.62x51/.308 Paddle Mag Release - Standard - HKP-01851 HK33, HK93, HK51, HK91, G3 Paddle Magazine Release - Standard
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    HK33, HK93, HK51, HK91, G3 Paddle Magazine Release - Standard

    H&K Heckler & Koch

    Now: $7.95
    Was: $8.95
    New Heckler and Koch Paddle Magazine Release This item is a brand new HK German genuine part, not a used or surplus part. It's used for installation on all HK .223 and .308 rifles. Compatible With: HK91, G3 HK 51 HK33, HK93 PSG1, MSG90
    HKP-01851
    Now: $7.95
    Was: $8.95
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  • On Sale
    New - H&K MP5, 94 Cocking Tube Support Spring - HKP-01104
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    HK MP5, HK94 Cocking Tube Support Spring

    H&K Heckler & Koch

    Now: $5.95
    Was: $6.95
    Heckler and Koch HK MP5, HK94 Cocking Tube Support Spring   A great spare to have on hand as this part can become worn and be lost. The cocking tube support spring applies pressure to the cocking tube detent to enable the detent to lock into...
    HKP-01104
    Now: $5.95
    Was: $6.95
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    Now: $5.95
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  • On Sale
    New - H&K HK 45C/USPC/P2000/P30 Recoil Rod Bushing Sleeve - HKP-01765
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    HK45 Compact, USP Compact, P2000, P30 Recoil Rod Bushing Sleeve

    H&K Heckler & Koch

    Now: $5.95
    Was: $6.95
    Recoil Rod Bushing Sleeve  It is a must-have spare part to have on hand as this is a high-wear item. Compatible With: HK 45 Compact, HK45C Tactical HK USP Compact 9mm HK USP Compact .40 & .357 Sig HK USP Compact .45 ACP HK P2000...
    HKP-01765
    Now: $5.95
    Was: $6.95
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  • On Sale
    New - Lazy Wolf HK Reduced Power Hammer Spring - 12 lb. - HKP-18148
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    HK USP, P30, HK45 Hammer Spring - Reduced Power - 12 lb.

    Lazy Wolf

    Now: $8.95
    Was: $9.95
    Lazy Wolf HK Reduced Power Hammer Spring - 12 lb. An exciting new offering as a joint collaboration from the widely renowned pistol smith Lazy Wolf Guns & HK Parts! This custom spring was designed exclusively by master trigger smith Rick Holm at LWG...
    HKP-18148
    Now: $8.95
    Was: $9.95
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    Now: $8.95
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  • On Sale
    New - HK 91/G3/MSG90 (7.62x51/.308) 20 Round Magazine Floor Plate - HKP-18921 HK91, G3, PTR Magazine Floorplate - 7.62x51 / .308 - 20 Round
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    HK91, G3, PTR Magazine Floorplate - 7.62x51 / .308 - 20 Round

    Now: $16.95
    Was: $19.95
    HK 91/G3/MSG90 (7.62x51/.308) 20 Round Magazine Floor Plate USA made floor plate for HK 91, G3, PTR 91 20-Round Steel and Aluminum Magazines. This floor plate is made in the USA and counts as one US made compliant part needed for builds and conversions...
    HKP-18921
    Now: $16.95
    Was: $19.95
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    Now: $16.95
    Was: $19.95
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  • On Sale
    HK MP5, MP5K, AP5 Replacement Kit - Firing Pin and Spring HK MP5, MP5K, AP5 Replacement Kit - Firing Pin and Spring
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    HK MP5, MP5K, AP5 Replacement Kit - Firing Pin and Spring

    MKE

    Now: $16.95
    Was: $19.95
    MKE HK MP5, MP5K, AP5 Steel Firing Pin and Spring Replacement Kit Replacement steel firing pin and spring kit for HK MP5 platforms. Direct-fit parts for repairing or replacing worn firing components in MP5-style bolt assemblies. Includes: Firing...
    HKP-99344
    Now: $16.95
    Was: $19.95
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    Now: $16.95
    Was: $19.95
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  • On Sale
    New - H&K HK P30, P30L, P30S, USPC, P2000 - 9mm Recoil Spring - HKP-01560
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    HK P30, P30L, P30S, USP Compact, P2000 - 9mm Recoil Spring

    H&K Heckler & Koch

    Now: $31.95
    Was: $34.95
    Recoil Spring New HK German manufacture recoil spring for guide rod. A must-have spare part and a common consumable item. Compatible With: USP Compact 9mm P2000 9mm P30, P30L & P30S 9mm models
    HKP-01560
    Now: $31.95
    Was: $34.95
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    Was: $34.95
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  • Out Of Stock
    On Sale
    New - H&K HK MR556/416 Ejection Port Spring - HKP-02616

    HK416, MR556 Ejection Port Spring

    H&K Heckler & Koch

    Now: $8.95
    Was: $9.95
    H&K HK MR556/416 Ejection Port Spring Compatible With: HK MR556 HK 416
    HKP-02616
    Now: $8.95
    Was: $9.95
    Out Of Stock
    Qty in Cart: 0
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    Now: $8.95
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  • On Sale
    New - H&K HK USP/45 LEM & Standard Models New Style Sear Catch - HKP-01803
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    HK45, USP Sear Catch - New Style, LEM, Standard

    H&K Heckler & Koch

    Now: $17.95
    Was: $19.95
    HK USP & 45 LEM & Standard Models New Style Sear Catch This is the new style catch to convert older USP models to the newer style catch and is needed for the LEM conversions. It is also known as the USP match catch. Compatible...
    HKP-01803
    Now: $17.95
    Was: $19.95
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    Now: $17.95
    Was: $19.95
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  • On Sale
    New - HKP 17 Round HK VP9/P30 Extended Magazine Spring For +5 Extensions - HKP-19297
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    HK VP9, P30 Magazine Spring - 17 Round

    HKP HK Parts

    Now: $7.95
    Was: $8.95
    Extended Magazine Spring - HK 17 Round Magazine For Use With The +4 or+5 Extension - HK VP9, HK P30 This Extended Magazine spring fits VP9 and P30 9mm 17 round magazines with the HK Parts +4 and +5 Extension Base Plates.  A must-have item when using...
    HKP-19297
    Now: $7.95
    Was: $8.95
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  • On Sale
    Used - H&K Full Auto Paddle Magazine Release Bushing HK German - Used - HKP-02303
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    HK MP5, SP5, HK90 Series Paddle Mag Release Bushing - Full Auto - Used

    H&K Heckler & Koch

    Now: $4.45
    Was: $4.95
    H&K Full Auto Paddle Magazine Release Bushing HK German - Used This part is for use in all 90-series H&K weapon systems. Used for installing a paddle mag release. Please Note: This is not for use on semi-auto HK builds. This part is used for...
    HKP-02303
    Now: $4.45
    Was: $4.95
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    Now: $4.45
    Was: $4.95
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  • Out Of Stock
    New - Snap Hook 1" - Universal - HKP-00730 Sling Snap Hook 1" - Universal

    Sling Snap Hook 1" - Universal

    USA

    $4.95
    Snap Hook 1" This is a 1" HK-style snap hook for sling or other custom projects. We also offer 1.25" HK sling hooks, as these are great spare parts to have on hand.
    HKP-00730
    $4.95
    Out Of Stock
    Qty in Cart: 0
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    $4.95
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