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 MR762 A4 1.5mm Gas Vent Screw - HKP-21953
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    HK MR762 A4 Gas Vent Screw - 1.5mm

    H&K Heckler & Koch

    $29.95
    H&K MR762 A4 1.5mm Gas Vent Screw German 1.5mm gas vent screw for MR762 A4. Provides more venting than the factory-installed 1.3mm screw. Compatible With: MR762 A4
    HKP-21953
    $29.95
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    $29.95
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  • On Sale
    Used - H&K 21 (7.62x51/.308) Firing Pin - USED - BLEMISHED - HKP-00546-B
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    HK21 Firing Pin - USED - BLEMISHED

    H&K Heckler & Koch

    Now: $39.95
    Was: $79.95
    H&K 21 (7.62x51/.308) Firing Pin - USED - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Compatible With: HK21
    HKP-00546-B
    Now: $39.95
    Was: $79.95
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    Qty in Cart: 0
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    Now: $39.95
    Was: $79.95
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  • Out Of Stock
    New - B&T APC9 Selector Position Lock Spring - HKP-21764 B&T APC9 Selector Position Lock Spring

    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
    Out Of Stock
    Qty in Cart: 0
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    $4.95
    Subtotal:
    Out Of Stock
  • Out Of Stock
    New - H&K HK SL8-1 Clamping Sleve - HKP-16401

    HK SL8-1 Safety Clamping Sleeve

    H&K Heckler & Koch

    $8.95
    H&K HK SL8-1 Clamping Sleve
    HKP-16401
    $8.95
    Out Of Stock
    Qty in Cart: 0
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    $8.95
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    Out Of Stock
  • New - H&K HK MR762/417 Plate For Charging Handle - HKP-16843 HK417, MR762 Charging Handle Plate
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    HK417, MR762 Charging Handle Plate

    H&K Heckler & Koch

    $19.95
    HK MR762, HK417 Plate For Charging Handle Compatible With: HK MR762 HK417
    HKP-16843
    $19.95
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    Qty in Cart: 0
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    $19.95
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  • New - HK G41 Recoil Rod Spring - HKP-02051
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    HK G41 Recoil Rod Spring

    H&K Heckler & Koch

    $39.95
    HK G41 Recoil Rod Spring
    HKP-02051
    $39.95
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    $39.95
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  • New - HKP .40 S&W Enhanced Titanium Thread Protector- Threaded 9/16x24 - Silver - HKP-17976
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    Thread Protector - .40 S&W - 9/16x24 - Titanium

    HKP HK Parts

    $24.95
    HKP .40 S&W Enhanced Titanium Thread Protector- Threaded 9/16x24   This solid titanium .40 S&W tactical thread protector is designed for barrels threaded 9/16x24. It’s an essential accessory for safeguarding your threaded barrel,...
    HKP-17976
    $24.95
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    Qty in Cart: 0
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    $24.95
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  • New - H&K HK 45C Hammer Strut - HKP-02217
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    HK45 Compact Hammer Strut

    H&K Heckler & Koch

    $11.95
    Heckler and Koch HK45 Compact Hammer Strut Replacement hammer strut designed for the HK45 Compact pistol. Intended for maintenance or repair of compatible hammer assemblies to ensure proper operation. Compatible With: HK45 Compact
    HKP-02217
    $11.95
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    $11.95
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  • New - H&K HK Mark 23 Sear Block - HKP-01779 HK Mark 23 Sear Block
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    HK Mark 23 Sear Block

    H&K Heckler & Koch

    $19.95
    HK Mark 23 Sear Block
    HKP-01779
    $19.95
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    Qty in Cart: 0
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    $19.95
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  • New - H&K HK Mark 23 Sear Axle - HKP-01786
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    HK Mark 23 Sear Axle

    H&K Heckler & Koch

    $9.95
    HK Mark 23 Sear Axle
    HKP-01786
    $9.95
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    Qty in Cart: 0
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    $9.95
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  • New - H&K HK Mark 23 Hammer Axle - HKP-01600
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    HK Mark 23 Hammer Axle

    H&K Heckler & Koch

    $9.95
    HK Mark 23 Hammer Axle
    HKP-01600
    $9.95
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    Qty in Cart: 0
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    $9.95
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  • New - H&K HK Mark 23 Disconnector - HKP-01766
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    HK Mark 23 Disconnector

    H&K Heckler & Koch

    $17.95
    HK Mark 23 Disconnector
    HKP-01766
    $17.95
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    Qty in Cart: 0
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    $17.95
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