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 HK P2000/P2000SK/45/45C Slim Slide Release Lever w/ Axle - HKP-01956

    HK45, HK45 Compact, P2000, P2000SK Slim Slide Release Lever with Axle

    H&K Heckler & Koch

    $30.95
    HK Slim Slide Release Lever w/ Axle This is the upgraded version that replaced the original early versions. This model has enhanced upgrades to update and improve your HK pistol's function and design features. Compatible With: HK45 HK45...
    HKP-01956
    $30.95
    Out Of Stock
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    $30.95
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  • New - HK MR556/416 Firing Pin Catch - HKP-16846
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    HK416, MR556 Firing Pin Catch

    H&K Heckler & Koch

    $19.95
    HK MR556/416 Firing Pin Catch   Compatible With: HK MR556 HK 416  
    HKP-16846
    $19.95
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  • New - H&K UMP (.40 S&W/.45 ACP/9mm) Release Lever Spring - HKP-01891
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    HK UMP Release Lever Spring

    H&K Heckler & Koch

    $9.95
    HK UMP Release Lever Spring For All UMP Lowers  
    HKP-01891
    $9.95
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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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  • On Sale
    New - HKP +3 HK45 Tactical Magazine Extension - Red - BLEMISHED - HKP-18385-RE-B HKP +3 HK45 Tactical Magazine Extension - Red - BLEMISHED
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    HKP +3 HK45 Tactical Magazine Extension - Red - BLEMISHED

    HKP HK Parts

    Now: $24.95
    Was: $49.95
    HKP +3 HK45 Tactical Magazine Extension - Red - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK45 & HK45 Tactical +3 magazine extension adds...
    HKP-18385-RE-B
    Now: $24.95
    Was: $49.95
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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 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

    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 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 - 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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    $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 - H&K Sear Complete For HK Burst Trigger Packs - HKP-17028
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    HK MP5K, HK90 Series Burst Trigger Sear Complete

    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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    $59.95
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