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 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 - 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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  • New - HKP HK MP5/MP5K Extractor - Enhanced Coated Polish - HKP-22181-M HK MP5, MP5K Extractor - Coated and Polished
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    HK MP5, MP5K Extractor - Coated and Polished

    HKP HK Parts

    $44.95
    HKP HK MP5/MP5K Extractor - Enhanced - Coated and Polished  Built for dependable performance, this coated and polished extractor delivers smooth cycling and consistent extraction. A great choice for both upgrades and routine replacements. Available...
    HKP-22181-M
    $44.95
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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 HK 93/53/33 (5.56/.223) 30 Round Magazine Spring - HKP-14411
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    HK33, HK53, HK93 Magazine Spring - 30 Round

    H&K Heckler & Koch

    $8.45
    HK 93,33, & 53 Magazine Replacement Spring For Steel German HK 30-Round Magazines This is a hard-to-find and must-have spare part for your HK high-capacity mags. Please Note: Although not factory correct, these springs will work in the 25-round HK 93...
    HKP-14411
    $8.45
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  • Out Of Stock
    New - H&K MR556/MR762/416/417 Ambidextrous Selector Clamping Sleeve - HKP-22062

    HK416, MR556, HK417, MR762 Selector Lever Clamping Sleeve - Ambi

    H&K Heckler & Koch

    $5.95
    H&K MR556/MR762/416/417 Ambidextrous Selector Clamping Sleeve German H&K factory clamping sleeve for ambidextrous selector levers on MR556, MR762, HK416, and HK417. Compatible With: HK MR556 A1/A4 HK416 HK MR762 A1/A4 HK417
    HKP-22062
    $5.95
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  • New - H&K HK VP9/VP9SK, VP40 Trigger Safety Catch Elbow Spring - HKP-16772
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    HK VP9, VP9SK, VP40 Trigger Safety Spring

    H&K Heckler & Koch

    $6.95
    H&K HK VP9/VP9SK, VP40 Trigger Safety Catch Elbow Spring Elbow spring for trigger safety catch VP9, VP9SK & VP40.
    HKP-16772
    $6.95
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  • New - H&K MP5 40/10 Magazine Release Lever Spring - HKP-18109 HK MP5 Magazine Release Lever Spring - .40 S&W / 10mm
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    HK MP5 Magazine Release Lever Spring - .40 S&W / 10mm

    H&K Heckler & Koch

    $9.95
    H&K MP5 40/10 Magazine Release Lever Spring The needed spring that fits in the mag release lever and the magwell for the MP5 40/10 series. Made in Germany and no longer offered or made. These units are the latest design with the ground ends for...
    HKP-18109
    $9.95
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  • Out Of Stock
    New - H&K 10 Round HK USPC/P2000 9mm Floor Plate w/ Pinky Rest - Black - HKP-01201 HK USPC, P2000 Magazine Floorplate - 9mm - 10 Round - Pinky Rest

    HK USPC, P2000 Magazine Floorplate - 9mm - 10 Round - Pinky Rest

    H&K Heckler & Koch

    $24.99
    H&K 10 Round HK USPC/P2000 9mm Floor Plate w/ Pinky Rest Compatible With: HK USP Compact 9mm HK P2000 9mm
    HKP-01201
    $24.99
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    $24.99
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  • New - H&K HK MR556/416 Bolt Head Cam Pin - HKP-02539
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    HK416, MR556 Bolt Head Cam Pin

    H&K Heckler & Koch

    $31.95
    Heckler and Koch HK416 and HK MR556 Bolt Head Cam Pin New factory HK German manufactured cam pin for bolt group. A common wear and replacement item.  Compatible With: HK 416, MR556 HK 416 A5 HK M27
    HKP-02539
    $31.95
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