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 - B&T TP9/MP9 Firing Pin - Black - HKP-17297
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    B&T TP9, MP9 Firing Pin

    B&T Brugger & Thomet

    $44.95
    B&T Firing Pin For B&T TP9, MP9 Genuine Swiss Brugger and Thomet firing pin for the TP9 and MP9 platforms. Compatible With: B&T TP9 B&T MP9
    HKP-17297
    $44.95
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  • New - H&K HK P7M10/P7M13 Slide Removal Button, Retaining Catch - HKP-15432 HK P7M10, P7M13 Slide Removal Button, Retaining Catch
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    HK P7M10, P7M13 Slide Removal Button, Retaining Catch

    H&K Heckler & Koch

    $29.95
    H&K HK P7M10/P7M13 Slide Removal Button, Retaining Catch Brand new HK German manufacture. No longer in production. These are the last units that HK made. Last call!
    HKP-15432
    $29.95
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  • New - H&K HK Mark 23 Hammer Spring - HKP-01587
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    HK Mark 23 Hammer Spring

    H&K Heckler & Koch

    $10.95
    HK Mark 23 Hammer Spring
    HKP-01587
    $10.95
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    $10.95
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  • New - H&K 10 Round HK USP/Mark 23 .45 ACP Magazine Locking Plate - HKP-01591
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    HK USP, Mark 23 Magazine Locking Plate - .45 ACP - 10 Round

    H&K Heckler & Koch

    $5.95
    10 Round Magazine Locking Plate Compatible With: HK USP 45 ACP 10 round magazine HK Mark 23 10 round magazine
    HKP-01591
    $5.95
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    $5.95
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  • New - H&K HK MR556/MR762/416/417 Long Disconnector Spring - HKP-16774
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    HK416, HK417, MR556, MR762 Long Disconnector Spring

    H&K Heckler & Koch

    $9.95
    H&K HK MR556/MR762/416/417 Long Disconnector Spring HK German manufactured disconnector spring. This is the longer of the 2 springs found in the trigger/sear assembly. Compatible With: HK MR556 HK 416 HK MR762 HK 417
    HKP-16774
    $9.95
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    $9.95
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  • New - H&K MP5 40/10 +4 Roller - HKP-00335 HK MP5 Locking Roller +4 - .40 S&W / 10mm
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    HK MP5 Locking Roller +4 - .40 S&W / 10mm

    H&K Heckler & Koch

    $20.95
    New HK German MP5 40/10 +4 roller Hard to find and essential for making headspace adjustments when necessary. Great spare to have on hand and no longer in production.  Please Note: The price listed is per roller. Order 2 (pair) for a complete set...
    HKP-00335
    $20.95
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  • New - H&K 90 Series Hammer Spring Bushing For Burst Trigger Packs - HKP-02398 HK MP5, HK90 Series Hammer Spring Bushing - Burst
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    HK MP5, HK90 Series Hammer Spring Bushing - Burst

    H&K Heckler & Koch

    $19.99
    90 Series Hammer Spring Bushing For Burst Trigger Packs This part will fit both two and three-round burst trigger packs. 
    HKP-02398
    $19.99
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  • On Sale
    HK MP5, G3, PTR, HK93 Push Button for Magazine Catch H&K Heckler & Koch HKP-22325 HK MP5, G3, PTR, HK93 Push Button for Magazine Catch H&K Heckler & Koch HKP-22325
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    HK MP5, G3, HK93 Magazine Catch Push Button- Used

    H&K Heckler & Koch

    Now: $4.95
    Was: $8.95
    H&K MP5, G3, PTR, HK93 Push Button for Magazine Catch - Used   Factory original HK push button replacement part. Limited quantity available.   This is a used part, sold AS-IS, and is not eligible for return.  Compatible...
    HKP-99316
    Now: $4.95
    Was: $8.95
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    Now: $4.95
    Was: $8.95
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  • New - H&K HK MR762/417 Charging Handle Catch - HKP-16852 HK417, MR762 Charging Handle Catch
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    HK417, MR762 Charging Handle Catch

    H&K Heckler & Koch

    $59.95
    HK MR762, HK417 Extended Charging Handle Catch Complete  New HK German manufacture. A great part to have on hand as these are prone to breakage and wear. Compatible With: HK MR762 HK 417 HK G28
    HKP-16852
    $59.95
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  • New - H&K HK 45/P30SK Lockout Compression Spring - HKP-02272
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    HK45, P30SK Safety Lever Compression Spring

    H&K Heckler & Koch

    $6.95
    HK 45 & P30SK Lockout Compression Spring   Compatible With: HK45 HK45 Compact HK P30SK
    HKP-02272
    $6.95
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    $6.95
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  • New - H&K HK USP Full Size Right Side Ambidextrous Control Lever - HKP-16625
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    HK USP Full Size Right Side Ambidextrous Control Lever

    H&K Heckler & Koch

    $29.95
    H&K HK USP Full Size Right Side Ambidextrous Control Lever Good spare to have on hand as they are prone to damage or cracking. This item will only fit the left side ambidextrous control lever with axle.
    HKP-16625
    $29.95
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  • Out Of Stock
    New - H&K HK USP Variant 1-6, 9 & 10 Hammer Axle - HKP-01931

    HK USP Variant 1-6, 9, 10 Hammer Axle

    H&K Heckler & Koch

    $31.95
    HK USP Variant 1-6, 9, & 10 Hammer Axle   Compatible With: HK USP 9mm HK USP 40 HK USP 45
    HKP-01931
    $31.95
    Out Of Stock
    Qty in Cart: 0
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    $31.95
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