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 VP9, VP9SK, VP40 Slide Plate - Black - HKP-16834 HK VP9, VP9SK, VP40 Slide Plate
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    HK VP9, VP9SK, VP40 Slide Plate

    H&K Heckler & Koch

    $13.95
    H&K VP9, VP9SK, VP40 Slide Plate New German HK manufacture. Slide plate for the rear of the pistol. Made of polymer. Compatible With: HK VP9, VP9 Tactical, VP9 OR HK VP9SK HK VP9A1 F, VP9A1 K HK VP40
    HKP-16834
    $13.95
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  • HK45C, USPC Firing Pin HK45C, USPC Firing Pin
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    HK45C, USPC Firing Pin

    H&K Heckler & Koch

    $57.95
    H&K HK USPC/45C Firing Pin   A great spare part to have on hand for wear and breakage parts. A factory German HK OEM part. Compatible With: HK45 Compact HK45C Tactical HK USP Compact 45 HK USPC Tactical 45
    HKP-01288
    $57.95
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  • New - H&K HK MR556/416 Charging Handle Release Latch - HKP-16553 HK416, MR556 Charging Handle Release Latch
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    HK416, MR556 Charging Handle Release Latch

    H&K Heckler & Koch

    $39.95
    H&K HK MR556/416 Charging Handle Release Latch Perfect replacement item for the MR556 & HK 416 charging handle. New HK German manufacture. These can become chewed up and damaged with a hard drop or with heavy use. This is a great item to keep on...
    HKP-16553
    $39.95
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  • New - H&K G36/SL8 (5.56/.223) Cocking Handle - HKP-01853
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    HK G36, SL8 Cocking Handle

    H&K Heckler & Koch

    $55.95
    HK Cocking Handle For G36 & SL8 Bolt Carriers  
    HKP-01853
    $55.95
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  • New - H&K UMP (.40 S&W/.45 ACP/9mm) Firing Pin Retainer Pin - HKP-01894
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    HK UMP Firing Pin Retainer Pin - .40 S&W / .45 ACP / 9mm

    H&K Heckler & Koch

    $7.95
    HK UMP Firing Pin - Retainter Pin   This is the pin that trips the trip lever on the UMP lower.   Compatible With: HK UMP  
    HKP-01894
    $7.95
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  • New - H&K HK P7 PSP/P7M8 Magazine Locking Plate - HKP-01313 HK P7 PSP, P7M8 Magazine Locking Plate
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    HK P7 PSP, P7M8 Magazine Locking Plate

    H&K Heckler & Koch

    $12.95
    HK P7 PSP/P7M8 Magazine Locking Plate Compatible With: PSPP7M8
    HKP-01313
    $12.95
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  • New - H&K HK USP Lanyard Loop Insert Pin - HKP-01930
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    HK USP Lanyard Loop Insert Pin

    H&K Heckler & Koch

    $19.95
    HK USP Lanyard Loop Insert Pin   Compatible With: HK USP 9mm HK USP 40 HK USP 45  
    HKP-01930
    $19.95
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  • New - HKP HK MP5 (.40 S&W) Locking Roller +2 - HKP-17564
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    HKP HK MP5 (.40 S&W) Locking Roller +2

    HKP HK Parts

    $11.95
    HK US MP5 .40 S&W Locking Roller, +2 The proper roller size is essential for proper headspacing of bolt gap. +2 / 8.02mm Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the...
    HKP-17564
    $11.95
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  • New - H&K Sear Complete For HK Burst Trigger Packs - HKP-17028
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    HK Series Sear Catch - Steel - Burst

    H&K Heckler & Koch

    $59.95
    Heckler & Koch's Sear Catch for HK90 Series and HK MP5K - Steel - German For Burst Trigger Packs Compatible With: 0,1,3,F 0,1,2,F 0,1,3 0,1,2
    HKP-17028
    $59.95
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  • New - H&K 93/53/33 & HK21E/23E Cocking Handle Pivot Pin - HKP-21746 HK33, HK53, HK93, HK21E, 23E Cocking Handle Pivot Pin
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    HK33, HK53, HK93, HK21E, 23E Cocking Handle Pivot Pin

    H&K Heckler & Koch

    $18.95
    H&K 93/53/33 & HK21E/23E Cocking Handle Pivot Pin This genuine H&K cocking handle pivot pin allows smooth operation of the charging handle assembly. While the nipple on the 21E pin is slightly shorter than the 33 pin, it remains fully...
    HKP-21746
    $18.95
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  • New - USA HK UMP Left Hammer Spring - HKP-20840 HK UMP Hammer Spring - Left
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    HK UMP Hammer Spring - Left

    USA

    $9.95
    USA HK UMP Left Hammer Spring New U.S hammer spring- left side A high wear item that needs to be changed when light firing pin strikes develop on your USC or UMP firearm. Compatible With:  HK UMP models 45, .40 & 9mm USC .45 and other...
    HKP-20840
    $9.95
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  • New - H&K HK 45/P30 Lockout Key - HKP-02504
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    HK45, P30 Lockout Key

    H&K Heckler & Koch

    $12.95
    Safety Lockout Key HK45, HK45C, P30, & P30L New HK German lockout key for the factory HK mag release lockout. Compatible With: HK 45, HK45 Tactical HK 45C, HK45C Tactical All HK P30 All HK P30L All HK P30
    HKP-02504
    $12.95
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