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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  • 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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  • HK CC9 Magazine Locking Plate - 10 Round HK CC9 Magazine Locking Plate - 10 Round
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    HK CC9 Magazine Locking Plate - 10 Round

    H&K Heckler & Koch

    $5.95
    H&K CC9 Magazine Locking Plate - 10 Round Locking plate for H&K CC9 10-round magazines. Secures the floor plate and internal components to the magazine body. Genuine H&K part. Compatible With: HK CC9
    HKP-22149
    $5.95
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  • On Sale
    Used - HKP HK VP9, HK VP40 Gen 2 Enhanced Magazine Release - BLEMISHED - HKP-21098-BL-B HK VP9, VP40 Magazine Release - Enhanced - Gen 2 - BLEMISHED
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    HK VP9, VP40 Magazine Release - Enhanced - Gen 2 - BLEMISHED

    HKP HK Parts

    Now: $32.95
    Was: $49.95
    HKP HK VP9, HK VP40 Gen 2 Enhanced Magazine Release - BLEMISHED INSTALLATION MARKS COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The oversized magazine release...
    HKP-21098-BL-B
    Now: $32.95
    Was: $49.95
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    Now: $32.95
    Was: $49.95
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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
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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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  • 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

    $4.95
    H&K HK MR762 Ejection Door Clamping Sleeve Compatible With: HK MR762
    HKP-16518
    $4.95
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    Qty in Cart: 0
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    $4.95
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  • New - H&K HK USP/45/45C Disconnector - HKP-01175
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    HK45, HK45 Compact, USP Disconnector

    H&K Heckler & Koch

    $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
    $9.95
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    $9.95
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  • Out Of Stock
    New - H&K HK USPC Slide Release Lever - HKP-02252 HK USP Compact Slide Release Lever

    HK USP Compact Slide Release Lever

    H&K Heckler & Koch

    $64.95
    HK USPC Slide Release Lever New HK German factory part. Compatible With: HK USP Compact 9mm HK USP Compact .357 HK USP Compact .40 HK USP Compact .45 HK USP Compact Tactical Models
    HKP-02252
    $64.95
    Out Of Stock
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  • 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

    $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
    $4.95
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    $4.95
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  • New - HKP HK MR556/416 SS Firing Pin - HKP-01756
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    HK416, MR556 SS Firing Pin

    HKP HK Parts

    $29.95
    Firing Pin For HK 416 & MR556 Firearm - USA Made from hardened stainless steel and comes new in the white. Compatible With: HK416 HK MR556 HK CR556 HK M27
    HKP-01756
    $29.95
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  • 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

    $10.95
    H&K G36/SL8 (5.56/.223) Firing Pin Retaining Pin Compatible With: HK G36 HK SL8
    HKP-02469
    $10.95
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    $10.95
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  • New - H&K G36/SL8 (5.56/.223) Bolt Catch Spring - HKP-01861
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    HK G36, SL8 Bolt Catch Spring

    H&K Heckler & Koch

    $9.95
    HK German G36 & SL8 Bolt Catch Spring  
    HKP-01861
    $9.95
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    Qty in Cart: 0
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    $9.95
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