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 P7 Series Front Sight Slide Retainer Pin - HKP-01361
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    HK P7 Series Front Sight Slide Retainer Pin

    H&K Heckler & Koch

    $4.95
    HK P7 Series Front Sight Slide Retainer Pin Compatible With: PSP P7M8 P7M10 P7M13
    HKP-01361
    $4.95
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    Qty in Cart: 0
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    $4.95
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  • Out Of Stock
    New - H&K MP5 40/10 +2 Roller - HKP-00334 HK MP5 Locking Roller +2 - .40 S&W, 10mm

    HK MP5 Locking Roller +2 - .40 S&W, 10mm

    H&K Heckler & Koch

    $19.99
    H&K Heckler and Koch +2 Roller for HK MP5 40,10  New HK German MP5 40,10 +2 roller. Hard to find and essential for making headspace adjustments when necessary. Great spare to have on hand and no longer in production.  Please Note: The price...
    HKP-00334
    $19.99
    Out Of Stock
    Qty in Cart: 0
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    $19.99
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  • On Sale
    New - H&K CC9 Recoil Spring Assembly - HKP-22128
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    HK CC9 Recoil Spring Assembly

    H&K Heckler & Koch

    Now: $44.95
    Was: $48.95
    H&K CC9 Recoil Spring Assembly Made in Germany, the recoil spring assembly for CC9 pistol absorbs slide movement and returns the slide to battery during cycling. Compatible With: HK CC9  
    HKP-22128
    Now: $44.95
    Was: $48.95
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    Now: $44.95
    Was: $48.95
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  • On Sale
    HK MP5SF Bushing Sleeve - Elbow Spring with roller - USED HK MP5SF Bushing Sleeve - Elbow Spring with roller - USED
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    HK MP5SF Bushing Sleeve - Elbow Spring with roller - USED

    H&K Heckler & Koch

    Now: $2.96
    Was: $5.95
    HK MP5SF Bushing Sleeve - Elbow Spring with roller - USED   VARYING CONDITION SHOWN - SOLD INDIVIDUALLY   USED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN.  Features: Precision-machined elbow spring...
    HKP-03330-USED
    Now: $2.96
    Was: $5.95
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    Now: $2.96
    Was: $5.95
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  • Out Of Stock
    New - HKP HK UMP Stock Block - B Push Pin - HKP-21249 HK UMP Stock Block B Push Pin

    HK UMP Stock Block B Push Pin

    HKP HK Parts

    $34.95
    Stock Block B Sling Pin With Loop washer & Quick Pull Pin for UMP/USC (.40 S&W/ .45 ACP/9mm)   
    HKP-21249
    $34.95
    Out Of Stock
    Qty in Cart: 0
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    $34.95
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  • On Sale
    New - H&K VP9SK, VP40SK Backstrap - Small - Black - HKP-18306 HK VP9SK, VP40SK Backstrap - Small - Black
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    HK VP9SK, VP40SK Backstrap - Small - Black

    H&K Heckler & Koch

    Now: $23.95
    Was: $25.95
    H&K VP9SK, VP40SK Backstrap - Small - Black New HK German manufacture. Compatible With: HK VP9SK HK VP40SK
    HKP-18306
    Now: $23.95
    Was: $25.95
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    Now: $23.95
    Was: $25.95
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  • On Sale
    New - H&K HK USP/45/45C Disconnector - HKP-01175
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    HK45, HK45 Compact, USP Disconnector

    H&K Heckler & Koch

    Now: $8.95
    Was: $9.95
    HK German USP 45, HK45, & HK45C Disconnector Compatible: HK45 USP9 USP40 USP45 USP Compact 9 USP Compact 40 USP Compact 45
    HKP-01175
    Now: $8.95
    Was: $9.95
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    Now: $8.95
    Was: $9.95
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  • On Sale
    New - H&K HK 416 Roll Pin For 33mm Front Folding Sight - HKP-14144
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    HK416 Front Sight Roll Pin - Folding 33mm

    H&K Heckler & Koch

    Now: $4.45
    Was: $4.95
    HK 416 Roll Pin For 33mm Front Folding Sight This version is the enhanced (longer) roll pin for a more secure fitment. 
    HKP-14144
    Now: $4.45
    Was: $4.95
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    Now: $4.45
    Was: $4.95
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  • On Sale
    New - H&K G36/SL8 (5.56/.223) Firing Pin Retaining Pin - HKP-02469 HK G36, SL8 Firing Pin Retaining Pin
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    HK G36, SL8 Firing Pin Retaining Pin

    H&K Heckler & Koch

    Now: $9.95
    Was: $10.95
    H&K G36/SL8 (5.56/.223) Firing Pin Retaining Pin Compatible With: HK G36 HK SL8
    HKP-02469
    Now: $9.95
    Was: $10.95
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    Qty in Cart: 0
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    Now: $9.95
    Was: $10.95
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  • On Sale
    New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Slide For Lower - HKP-00268
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    HK UMP, USC Conversion Slide

    H&K Heckler & Koch

    Now: $17.95
    Was: $19.95
    HK USC & UMP Slide For Lower - German New HK German USC slide for conversion of UMP lower. 
    HKP-00268
    Now: $17.95
    Was: $19.95
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    Qty in Cart: 0
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    Now: $17.95
    Was: $19.95
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  • On Sale
    HK MP5, G3, MKE AP5 Elbow Spring with Roller - Full-Auto HK MP5, G3, MKE AP5 Elbow Spring with Roller - Full-Auto
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    HK MP5, G3, MKE AP5 Elbow Spring with Roller - Full-Auto

    MKE

    Now: $3.95
    Was: $4.95
    MKE AP5, HK MP5, G3 Full-Auto Elbow Spring with Roller This elbow spring is manufactured by MKE from steel and is used in MP5 and G3 pattern trigger packs. It provides proper tension and function for the trigger pack elbow and is suitable for...
    HKP-22489
    Now: $3.95
    Was: $4.95
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    Qty in Cart: 0
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    Now: $3.95
    Was: $4.95
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  • On Sale
    New - H&K HK MR762 Ejection Door Clamping Sleeve - HKP-16518
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    HK MR762 Ejection Door Clamping Sleeve

    H&K Heckler & Koch

    Now: $4.45
    Was: $4.95
    H&K HK MR762 Ejection Door Clamping Sleeve Compatible With: HK MR762
    HKP-16518
    Now: $4.45
    Was: $4.95
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    Qty in Cart: 0
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    Now: $4.45
    Was: $4.95
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