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 - HK UMP/USC/SL8/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Fixed Rear Sight Flat Spring - HKP-16635
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    HK UMP, USC, SL8, G36 Fixed Rear Sight Flat Spring

    H&K Heckler & Koch

    $8.95
    HK G36, SL8 & USC, UMP Fixed Rear Sight Flat Spring Compatible With: G36 SL8 USC. 45 UMP 9mm UMP .40 UMP .45
    HKP-16635
    $8.95
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  • New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Hammer Spring - Right - HKP-01892
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    HK UMP, USC Hammer Spring - Right

    H&K Heckler & Koch

    $14.95
    HK UMP & USC Right Side Hammer Spring For Lowers
    HKP-01892
    $14.95
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    $14.95
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  • New - H&K 21E/11E/PSG1/MSG90 Firing Pin - HKP-01758 HK21E, HK11E, PSG1, MSG90 Firing Pin
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    HK21E, HK11E, PSG1, MSG90 Firing Pin

    H&K Heckler & Koch

    $119.95
    HK German 21E, 11E, PSG1, & MSG90 Firing Pin New HK genuine German firing pin. These firing pins are no longer in production from HK.  We have a limited number available and once they are gone, they are gone for good. Compatible With: HK...
    HKP-01758
    $119.95
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    $119.95
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  • New - H&K MP5 Stock Locking Lever With Spring - HKP-02560 HK MP5, HK91, G3, HK33, HK53, HK93 A3 Stock Locking Lever with Spring
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    HK MP5, HK91, G3, HK33, HK53, HK93 A3 Stock Locking Lever with Spring

    H&K Heckler & Koch

    $199.95
    HK MP5, HK91, G3, HK33/53/93 A3 Retractable Stock Locking Lever With Locking Spring Compatible With: MP5 (NOT compatible with MP5 .22 LR) HK G3, HK91 HK33, HK53, HK93
    HKP-02560
    $199.95
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    $199.95
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  • HK MP5 Safety Select Catch Lever Sleeve H&K Heckler & Koch HKP-22337 HK MP5 Safety Select Catch Lever Sleeve H&K Heckler & Koch HKP-22337
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    HK MP5 Safety Select Catch Lever Sleeve - Ambi

    H&K Heckler & Koch

    $12.95
    HK MP5 Safety Select Catch Lever Sleeve - Ambidextrous Trigger Packs Factory replacement sleeve for the safety selector catch lever. Compatible With the Following Ambidextrous Trigger Packs: HK MP5/MP5K HK91/G3 HK93/53/33 HK23/21/11 ***Not compatible...
    HKP-22337
    $12.95
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    $12.95
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  • New - H&K HK P7/P9 Firing Pin - HKP-22231 H&K HK P7/P9 Firing Pin H&K Heckler & Koch HKP-22231
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    HK P7, P9 Firing Pin

    H&K Heckler & Koch

    $79.95
    H&K Firing Pin 9mm Short/7.65mm - HK P7/P9 Ensures reliable ignition by striking the cartridge primer during firing. Compatible With: HK P7/P9  
    HKP-22231
    $79.95
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  • On Sale
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    HK P30 Series Magazine Release - BLEMISHED

    HKP HK Parts

    Now: $34.95
    Was: $49.95
    HKP HK P30 Series Magazine Release - BLEMISHED ONLY 1 ORANGE MAGAZINE RELEASE AVAILABLE COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK Parts Magazine Release...
    HKP-99284-OR-B
    Now: $34.95
    Was: $49.95
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    Now: $34.95
    Was: $49.95
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  • New - H&K CC9 Firing Pin Disconnect - HKP-22140
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    HK CC9 Firing Pin Disconnect

    H&K Heckler & Koch

    $5.95
    H&K CC9 Firing Pin Disconnect OEM firing pin disconnect for the H&K CC9 pistol. Controls firing pin engagement during the firing cycle. Compatible With: HK CC9    
    HKP-22140
    $5.95
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  • New - H&K CC9 Trigger Pin - HKP-22123
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    HK CC9 Trigger Pin

    H&K Heckler & Koch

    $5.95
    H&K CC9 Trigger Pin This genuine H&K CC9 trigger pin secures the trigger assembly within the frame. Compatible With: HK CC9  
    HKP-22123
    $5.95
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  • New - H&K CC9 Sear Pin - HKP-22119
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    HK CC9 Sear Pin

    H&K Heckler & Koch

    $5.95
    H&K CC9 Sear Pin Made in Germany by H&K, this sear pin for the CC9 pistol secures the sear within the fire control assembly. Compatible With: HK CC9  
    HKP-22119
    $5.95
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  • New - H&K CC9 Sear - HKP-22116
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    HK CC9 Sear

    H&K Heckler & Koch

    $19.95
    H&K CC9 Sear Made in Germany, this sear for the CC9 pistol engages and releases the hammer during the firing cycle. Compatible With: HK CC9  
    HKP-22116
    $19.95
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  • HK VP9, VP40 Slide Release Lever - Anti-Skid - Right HK VP9, VP40 Slide Release Lever - Anti-Skid - Right
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    HK VP9, VP40 Slide Release Lever - Anti-Skid - Right

    H&K Heckler & Koch

    $67.95
    H&K VP Anti-Skid Slide Release Lever - Right Right side extended slide release lever. Can be combined with 260431, 50254706, 50239395. Compatible with: VP9 VP9L VP9 Match VP9 Tactical  VP9SK VP9A1 VP40
    HKP-22012
    $67.95
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    $67.95
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