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 MR762 Hammer Complete - Black - HKP-16614 HK MR762 Hammer Complete
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    HK MR762 Hammer Complete

    H&K Heckler & Koch

    $179.95
    H&K HK MR762 Hammer Complete HK MR762 hammer, hammer spring, & bushing as a complete hammer assembly. Compatible With: HK MR762  
    HKP-16614
    $179.95
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  • New - HK G41 Dust Cover w/ Ejection Port Door - HKP-02048 HK G41 Ejection Port Cover
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    HK G41 Ejection Port Cover

    H&K Heckler & Koch

    $29.95
    Heckler and Koch HK G41 Dust Cover / Ejection Port Door  
    HKP-02048
    $29.95
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    New - H&K USP40 Expert Clamping Sleeve - HKP-02160

    HK USP40 Expert Clamping Sleeve

    H&K Heckler & Koch

    $9.95
    H&K USP40 Expert Clamping Sleeve
    HKP-02160
    $9.95
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    $9.95
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  • New - H&K HK Mark 23 Sear Lever - HKP-01785
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    HK Mark 23 Sear Lever

    H&K Heckler & Koch

    $45.95
    HK Mark 23 Sear Lever
    HKP-01785
    $45.95
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  • New - H&K HK Mark 23 Sear - HKP-01780 HK Mark 23 Sear
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    HK Mark 23 Sear

    H&K Heckler & Koch

    $94.95
    HK Mark 23 Sear   Factory HK replacement sear for the Mark 23 pistol.  
    HKP-01780
    $94.95
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  • Out Of Stock
    New - HKP HK USPC/45C Titanium Firing Pin - HKP-17801

    HK45C, USPC Firing Pin - Titanium

    HKP HK Parts

    $49.95
    HKP HK USPC/45C Titanium Firing Pin A solid billet CNC offering at 40+% lighter than comparable steel firing pins. Our titanium firing pins travel faster in the slide, delivering a quicker lock time & enhancing accuracy. Titanium pins also carry less...
    HKP-17801
    $49.95
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    New - H&K HK USP V5/6/7 Complete Bobbed Hammer - HKP-01934

    HK USP V5, V6, V7 Complete Bobbed Hammer

    H&K Heckler & Koch

    $0.00
    HK USP V5/6/7 Complete Bobbed Hammer   Compatible With: HK USP 9mm HK USP 40
    HKP-01934
    $0.00
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    New - H&K HK USPC Original Style Firing Pin - HKP-01286

    HK USP Compact Firing Pin - Original Style

    H&K Heckler & Koch

    $59.95
    HK USP Compact Firing Pin - Original Style Compatible With: HK USP Compact 9mm HK USP Compact 40 S&W HK USP Compact 357 SIG HK USP Compact LEM
    HKP-01286
    $59.95
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    New - H&K HK USP Series Old Style Catch - HKP-01176

    HK USP Series Old Style Catch

    H&K Heckler & Koch

    $29.95
    H&K HK USP Series Old Style Catch Compatible With: HK USP 9mm HK USP 40 HK USP 45 HK USP Compact 9mm HK USP Compact 40 HK USP Compact 357 HK USP Compact 45 HK USP Compact LEM
    HKP-01176
    $29.95
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  • New - H&K HK416/MR556 Locking Plate - Magazine - HKP-13484 HK416, MR556 Magazine Locking Plate
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    HK416, MR556 Magazine Locking Plate

    H&K Heckler & Koch

    $9.95
    HK German HK MR556 & HK 416 Magazine Locking Plate  
    HKP-13484
    $9.95
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    New - H&K USC (.45 ACP) Magazine Locking Plate Insert - HKP-16384 HK USC Magazine Locking Plate Insert - .45 ACP

    HK USC Magazine Locking Plate Insert - .45 ACP

    H&K Heckler & Koch

    $8.95
    H&K USC (.45 ACP) Magazine Locking Plate Insert
    HKP-16384
    $8.95
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  • Out Of Stock
    Used - HK Locking Roller -4 , 7.96mm - HKP-17558 Bolt Head Locking Roller -4, 7.96mm

    Bolt Head Locking Roller -4, 7.96mm

    HKP HK Parts

    $8.95
    HKP HK Parts -4 7.96mm Undersized Roller HK spec under-sized roller that will fit all HK bolt heads including HK91, G3, HK33, HK53, HK93, HK94, MP5, SP89 all clones and the Cetme and its clones. An easy way to remember the size you need to order: Plus...
    HKP-17558
    $8.95
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