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 30/32 Round HK USP/P30/VP9 Magazine Spring - HKP-16407 HK USP, P30, VP9 Magazine Spring - 30 and 32 Round Mags
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    HK USP, P30, VP9 Magazine Spring - 30 and 32 Round Mags

    H&K Heckler & Koch

    $9.95
    Heckler and Koch 30, 32 Round Magazine Spring for HK USP, HK P30, HK VP9 HK German manufacture new production HK USP 9mm 32 round magazine spring. A super rare and hard to find part for the USP 9mm extended 32 round magazines. This spring took years of...
    HKP-16407
    $9.95
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  • New - H&K HK VP9B Push Button Mag Release Tool - HKP-19747 HK VP9B Push Button Mag Release Tool
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    HK VP9B Push Button Mag Release Tool

    H&K Heckler & Koch

    $17.99
    Push Button Mag Release Disassembly Tool - HK VP9 B The factory HK OEM tool used to change the left to right mag release button of  the VP9B models. Compatible With: HK VP9B NOT compatible with VP9A1 F, VP9A1 K
    HKP-19747
    $17.99
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  • New - H&K HK P30L Complete Recoil Assembly - HKP-02485 HK P30L Recoil Rod Assembly - Complete
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    HK P30L Recoil Rod Assembly - Complete

    H&K Heckler & Koch

    $97.95
    Heckler and Koch Complete Recoil Rod Assembly for HK P30L 9mm Genuine German HK recoil rod assembly for the P30L 9mm. A fresh factory recoil spring restores proper cycling and ensures the pistol functions to original HK specifications. Compatible...
    HKP-02485
    $97.95
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  • New - H&K HK P2000/P30/USP Heavy Firing Pin Block Spring - HKP-01603
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    HK P30, P2000, USP Block Spring - Heavy Firing Pin

    H&K Heckler & Koch

    $5.95
    HK P2000 & P30 Heavy Firing Pin Block Spring This is the heavy LEM spring found on the LEM conversion. Compatible With: Any post-2005 production USP & UPSC P2000 P2000SK P30 P30SK Will fit the HK45 & HK45C models
    HKP-01603
    $5.95
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    New - H&K HK USP Recoil Rod Secondary Buffer Spring - HKP-02470 HK USP Buffer Spring

    HK USP Buffer Spring

    H&K Heckler & Koch

    $9.95
    HK USP Recoil Rod Secondary Buffer Spring This is the spring found under the larger primary recoil spring on the recoil assembly Compatible With: HK USP 45 HK USP 40 HK USP 9mm All HK USP Tactical models HK Elite, Expert
    HKP-02470
    $9.95
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  • New - H&K UMP (.45 ACP) Magazine Locking Plate - HKP-16338 HK UMP Magazine Locking Plate - .45 ACP
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    HK UMP Magazine Locking Plate - .45 ACP

    H&K Heckler & Koch

    $9.95
    H&K UMP (.45 ACP) Magazine Locking Plate
    HKP-16338
    $9.95
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  • New - HKP HK MP5 Enhanced Recoil Spring - HKP-22209
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    HK MP5 Recoil Spring - Enhanced

    HKP HK Parts

    $16.95
    HKP HK MP5 Enhanced Recoil Spring The HK Parts enhanced recoil spring offers a 5% increase in strength over the factory MP5 spring. Ideal for high round count firearms, suppressed setups, or simply to improve longevity. Won't fit F style recoil rods or...
    HKP-22209
    $16.95
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  • New - H&K USC (.45 ACP) Carbine Mag Release - HKP-02196
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    HK USC Magazine Release - .45 ACP

    H&K Heckler & Koch

    $19.95
    H&K USC (.45 ACP) Carbine Mag Release This is a great replacement as they are prone to breakage & wear. Please Note: For those that have a USC with a bullet button and are moving to a free state and want to revert back to the...
    HKP-02196
    $19.95
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  • New - HK UMP & G36 Pistol Grip Storage Insert - HKP-20176 HK G36, UMP Pistol Grip Storage Insert
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    HK G36, UMP Pistol Grip Storage Insert

    USA

    $16.95
    HK UMP & G36 Pistol Grip Storage Insert G36 & UMP pistol grip insert for all G36 & UMP lower housings. This is the piece that locks into place and fits in the bottom of the handle itself. This is a perfect storage location for paperwork,...
    HKP-20176
    $16.95
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  • New - H&K HK SL8, HK G36 Magazine Release Spring - HKP-16344
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    HK SL8, G36 Magazine Release Spring

    H&K Heckler & Koch

    $9.95
    HK German G36 & SL8 Magazine Release Spring A must have spare part. Compatible With: G36 SL8
    HKP-16344
    $9.95
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  • New - H&K HK Mark 23/SOCOM Firing Pin Spring - HKP-01627
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    HK Mark 23 Firing Pin Spring

    H&K Heckler & Koch

    $8.95
    HK Mark 23 Firing Pin Spring Compatible With: HK Mark 23 SOCOM
    HKP-01627
    $8.95
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  • New - H&K UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Sear - HKP-01850
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    HK UMP, USC, G36, SL8 Sear

    H&K Heckler & Koch

    $29.95
    HK Complete Sear G36, UMP, USC & SL8 Genuine German Heckler & Koch part. Compatible With: HK UMP HK USC HK G36 HK SL8
    HKP-01850
    $29.95
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