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 21E/PSG1/MSG90 (7.62x51/.308) & (5.56/.223) Factory Extractor - HKP-00250 HK21, PSG1, MSG90 Extractor - Factory - 7.62x51 / .308, 5.56 / .223

    HK21, PSG1, MSG90 Extractor - Factory - 7.62x51 / .308, 5.56 / .223

    H&K Heckler & Koch

    $129.95
    HK21E, 11E, PSG1, MSG90 Factory German HK Extractor
    HKP-00250
    $129.95
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    $129.95
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  • New - H&K MP5 40/10 Recoil Rod Bushing - Black - HKP-00441 HK MP5 Recoil Rod Bushing - 10mm / .40 S&W / .357 SIG
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    HK MP5 Recoil Rod Bushing - 10mm / .40 S&W / .357 SIG

    H&K Heckler & Koch

    $9.95
    New HK German MP5 40/10/.357 Recoil Rod Guide Ring Bushing For all MP5 40/10 & MP5F Recoil Rods. These will wear and become brittle and torn with age and use. A great item to have on hand for spare parts.
    HKP-00441
    $9.95
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  • On Sale
    HK Trigger Pack Ejector Lever Axle - USED HK Trigger Pack Ejector Lever Axle - USED
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    HK Trigger Pack Ejector Lever Axle - USED

    H&K Heckler & Koch

    Now: $12.95
    Was: $19.95
    HK Trigger Pack Ejector Lever Axle - USED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK German ejector lever axle pin for all HK trigger packs. This is the factory correct axle pin that holds the...
    HKP-01091-USED
    Now: $12.95
    Was: $19.95
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  • New - H&K CC9 Disassembly Safety Lever - HKP-22120
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    HK CC9 Disassembly Safety Lever

    H&K Heckler & Koch

    $5.95
    H&K CC9 Disassembly Safety Lever The CC9 disassembly safety lever prevents accidental discharge during disassembly by blocking the trigger mechanism. Compatible With: HK CC9    
    HKP-22120
    $5.95
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  • New - H&K CC9 Sear Spring - HKP-22115
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    HK CC9 Sear Spring

    H&K Heckler & Koch

    $6.95
    H&K CC9 Sear Spring Made in Germany, the CC9 sear spring applies tension to the sear for proper engagement and release during firing cycle. Compatible With: HK CC9  
    HKP-22115
    $6.95
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  • New - H&K MR556 A4/416 A5 Gas Block Spring - HKP-22060 HK MR556 A4/416 A5 Gas Block Spring
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    HK MR556 A4/416 A5 Gas Block Spring

    H&K Heckler & Koch

    $19.95
    H&K MR556 A4/416 A5 Gas Block Spring German-made gas block spring for the MR556 A4 and HK416 A5. Compatible With: HK MR556 A4 HK416 A5
    HKP-22060
    $19.95
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  • New - H&K MR762 A4 1.0mm Gas Vent Screw - HKP-21954 HK MR762 A4 Gas Vent Screw - 1.0mm
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    HK MR762 A4 Gas Vent Screw - 1.0mm

    H&K Heckler & Koch

    $29.95
    Heckler and Koch MR762 A4 Gas Vent Screws German gas vent screw for MR762 A4 gas block. Specifications: Factory reference: 1.3mm is the common factory vent screw size for MR556 A4 Sizing reminder: Larger mm equals more venting, Smaller mm...
    HKP-21954-M
    $29.95
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  • Out Of Stock
    New - KNS Precision HK Push Button Take Down Pin - Small - HKP-21389 KNS Precision HK Push Button Take Down Pin - Small

    KNS Precision HK Push Button Take Down Pin - Small

    KNS Precision

    $24.99
    KNS Precision HK Push Button Take Down Pin - Small .234" This 6mm (.234") diameter take-down pin has a spring-loaded push button. When the button is depressed, the stainless steel keeper detents retract for easy pin removal. The pin is designed to...
    HKP-21389
    $24.99
    Out Of Stock
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    $24.99
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  • Used - H&K HK SL8-1 Incomplete Locking Lever - HKP-16367 HK SL8-1 Locking Lever Housing - Incomplete
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    HK SL8-1 Locking Lever Housing - Incomplete

    H&K Heckler & Koch

    $9.95
    H&K HK SL8-1 Incomplete Locking Lever
    HKP-16367
    $9.95
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  • Used - H&K HK SL8-1 Locking Lever Elbow Spring - HKP-16398
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    HK SL8-1 Locking Lever Spring - Elbow

    H&K Heckler & Koch

    $9.95
    HK SL8-1 Locking Lever Elbow Spring
    HKP-16398
    $9.95
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  • New - H&K HK MR762 Drop Safety Catch Pin - HKP-16617
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    HK MR762 Drop Safety Catch Pin

    H&K Heckler & Koch

    $4.95
    H&K HK MR762 Drop Safety Catch Pin   Compatible With: HK MR762
    HKP-16617
    $4.95
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    $4.95
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  • New - H&K HK P7M8/P7M10/P7M13 Rear Sight Screw - HKP-01397
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    HK P7M8, P7M10, P7M13 Rear Sight Screw

    H&K Heckler & Koch

    $9.95
    Rear Sight Screw Compatible With: P7M8 P7M10 P7M13
    HKP-01397
    $9.95
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