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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  • On Sale
    HK Cocking Tube End Cap - Dust Cap - BLEMISHED HK MP5, HK91, G3, HK33 Cocking Tube End Cap - Dust Cap - BLEMISHED
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    HK MP5, HK91, G3, HK33 Cocking Tube End Cap - Dust Cap - BLEMISHED

    H&K Heckler & Koch

    Now: $29.95
    Was: $39.95
    H&K Cocking Tube End Cap/Dust Cap - BLEMISHED SOLD INDIVIDUALLY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. This part is Factory HK, painted black and not...
    HKP-00099-B
    Now: $29.95
    Was: $39.95
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    Now: $29.95
    Was: $39.95
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  • New - B&T APC9 Selector Position Lock Spring - HKP-21764 B&T APC9 Selector Position Lock Spring
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    B&T APC9 Selector Position Lock Spring

    B&T Brugger & Thomet

    $4.95
    B&T APC9 Selector Position Lock Spring Compatible With: APC Series Standard receiver Glock receiver Sig receiver
    HKP-21764
    $4.95
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    $4.95
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  • New - H&K VP9SK Right Side Grip Panel - Medium - Gray - HKP-18923 HK VP9SK Right Side Grip Panel - Medium - Gray
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    HK VP9SK Right Side Grip Panel - Medium - Gray

    H&K Heckler & Koch

    $16.95
    H&K VP9SK Right Side Grip Panel - Medium - Gray New HK German manufactured. Right side medium size perfect for spare or for custom stippling projects. Drop-in part for your HK VPSK pistol. Compatible With: HK VP9SK
    HKP-18923
    $16.95
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  • New - H&K HK MR762/417 Hammer Axle - HKP-16622
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    HK417, MR762 Hammer Axle

    H&K Heckler & Koch

    $13.95
    H&K HK MR762/417 Hammer Axle   Compatible With: HK MR762 HK 417
    HKP-16622
    $13.95
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    $13.95
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  • New - HK G41 Dust Cover w/ Ejection Port Door - HKP-02048 HK G41 Dust Cover w/ Ejection Port Door
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    HK G41 Dust Cover w/ Ejection Port Door

    H&K Heckler & Koch

    $29.95
    HK G41 Dust Cover W/ Ejection Port Door
    HKP-02048
    $29.95
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  • Out Of Stock
    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
    Out Of Stock
    Qty in Cart: 0
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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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    $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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    $94.95
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  • New - H&K HK Mark 23 Safety Detent - HKP-01782
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    HK Mark 23 Safety Detent

    H&K Heckler & Koch

    $10.95
    HK Mark 23 Safety Detent  
    HKP-01782
    $10.95
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    $10.95
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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
    Out Of Stock
    Qty in Cart: 0
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    $49.95
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  • Out Of Stock
    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
    Out Of Stock
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  • Out Of Stock
    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
    Out Of Stock
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    $29.95
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