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/23E (7.62x51/.308) & (5.56/.223) E Clip For Carry Handle - HKP-00579

    HK21E, HK23E E Clip For Carry Handle - 7.62x51 / .308 - 5.56 / .223

    H&K Heckler & Koch

    $9.95
    HK German "E" Clip For Carry Handle For HK21 & HK23E folding carry handles. Clips are sold individually.
    $9.95
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    $9.95
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  • New - H&K Burst Roller Type Trip Lever - Latest Style - HKP-01846 HK Burst Roller Type Trip Lever - Latest Style
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    HK Burst Roller Type Trip Lever - Latest Style

    H&K Heckler & Koch

    $99.95
    H&K Burst Roller Type Trip Lever - Latest Style Compatible With: 0,1,3,F 0,1,2,F 0,1,3 0,1,2
    $99.95
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    $99.95
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  • HK MP5 Barrel Retaining Pin - 5.015mm H&K Heckler & Koch HKP-22284 HK MP5 Barrel Retaining Pin - 5.015mm H&K Heckler & Koch HKP-22284
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    HK MP5 Barrel Retaining Pin - 5.015mm

    H&K Heckler & Koch

    $14.95
    H&K 90 Series Barrel Retaining Pin - 5.015mm Each barrel pin is used for installing a new or replacement barrel. HK suggests using a new factory barrel pin when installing or reinstalling an HK barrel.  Compatible With:  HK MP5, SP5, MP5K,...
    $14.95
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  • New - HK G36, HK SL8 Bolt Catch USF - HKP-19122 HK G36, HK SL8 Bolt Catch USF
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    HK G36, HK SL8 Bolt Catch USF

    USA

    $14.95
    HK G36 & SL8 Bolt Catch On AR-15 systems this would be similar to a cam pin. Compatible With: G36, G36K, G36C Sl8 variants
    $14.95
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  • New - H&K HK 417/MR762 Magazine Catch Retainer Ring - HKP-16521 HK417, MR762 Magazine Catch Retainer Ring
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    HK417, MR762 Magazine Catch Retainer Ring

    H&K Heckler & Koch

    $10.95
    H&K HK 417/MR762 Magazine Catch Retainer Ring   Compatible With: HK 417 HK MR762
    $10.95
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  • New - H&K HK MP7 Compression Spring - HKP-16782
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    HK MP7 Compression Spring

    H&K Heckler & Koch

    $5.95
    H&K HK MP7 Compression Spring
    $5.95
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  • New - HK UMP/USC (.45 ACP) Extractor - HKP-02623 HK UMP/USC (.45 ACP) Extractor
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    HK UMP/USC (.45 ACP) Extractor

    $39.95
    HK UMP & USC .45 Extractor Perfect for spares as they are prone to breakage and are a common wear item. Please Note: HK considers this a high wear and replacement item. Once removed from the carrier, the spring tension is compromised,...
    $39.95
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  • Used - H&K 91/G3 (7.62x51/.308) Magazine Catch - Used - HKP-18693 HK91, G3 Magazine Catch - Used
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    HK91, G3 Magazine Catch - Used

    H&K Heckler & Koch

    $16.95
    G3 Magazine Catch - HK 91, G3, PTR91 -.308/7.62 - USED The highest quality magazine catch available. High quality HK German production units are slightly used HK Parts from Heckler & Koch Germany. These also have the proper cut in them and do not...
    $16.95
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  • Used - H&K A3 Retractable Stock Clamping Lever Spring - HKP-01089
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    HK A3 Buttstock Clamping Lever Spring - Retractable

    H&K Heckler & Koch

    $19.95
    HK German Retractable Stock Clamping Lever Spring For A3 Retractable Stocks This spring is the most common breakage/wear item in the internal workings of the A3 retractable stock.
    $19.95
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  • New - H&K VP9, VP40 Grip Panel Right Side - Medium - FDE - HKP-18116 HK VP9, VP40 Grip Panel Right Side - Medium - FDE
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    HK VP9, VP40 Grip Panel Right Side - Medium - FDE

    H&K Heckler & Koch

    $19.95
    H&K VP9, VP40 Grip Panel Right Side - Medium - FDE New HK German manufactured. Right side, medium size. Perfect for spare or for custom stippling projects. Drop-in part for your HK VP pistol. Compatible With: HK VP9 HK VP9A1 F, VP9A1 K HK VP40
    $19.95
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  • New - H&K HK MR762/417/G28 Ejection Cover Axle Spring - HKP-16753
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    HK417, MR762, G28 Spring - Ejection Cover Axle

    H&K Heckler & Koch

    $9.95
    H&K HK MR762/417/G28 Ejection Cover Axle Spring New Hk German manufacture for the MR762 & HK 417 firearm. The spring is used on the axle and ejection port cover door to allow it to be closed and spring open. Compatible With: HK MR762 HK 417 HK...
    $9.95
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