Parts

Parts

At HK Parts, we offer a wide range of high-quality Heckler and Koch accessories and components for your favorite firearms. Whether you are upgrading a Heckler and Koch pistol or rifle, or building with parts kits, we have you covered. Explore top-rated components for VP9, USP, P30, MP5, MP5K, G36, HK416, and more. From triggers, barrels, and grips to magazines, stocks, and sights, find the parts you need to enhance performance, reliability, and function.

Popular upgrades include match triggers, threaded barrels, compensators, optic plates, and extended magazines. Rifle owners often add enhanced stocks, forearms, and ambidextrous controls.
MP5 and MP5K kits are top sellers, giving shooters authentic components for iconic builds. G36 and HK416 kits are also highly sought after by collectors and professionals alike.
HKP offers the world’s largest H&K-focused catalog, with better availability, faster fulfillment, and expert support compared to general retailers.

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  • New - H&K MP5 40/10 Factory Full Auto Bolt Carrier - HKP-00452 HK MP5 Bolt Carrier - Full Auto - .40 S&W, 10mm
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    HK MP5 Bolt Carrier - Full Auto - .40 S&W, 10mm

    H&K Heckler & Koch

    $339.95
    H&K Heckler & Koch New HK German MP5 40/10 Factory F/A Bolt Carrier This is the latest and greatest version of the MP5 40 and MP5 10mm carrier. No longer in production or manufactured. Tungsten-filled German HK and the real deal. 
    HKP-00452
    $339.95
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    $339.95
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  • Out Of Stock
    New - H&K MP5K/SP89 9mm SEF Contoured Trigger Group - Clipped & Pinned - HKP-01691 HK MP5K, SP89 Trigger Group - SEF - Contoured - Clipped and Pinned

    HK MP5K, SP89 Trigger Group - SEF - Contoured - Clipped and Pinned

    H&K Heckler & Koch

    $0.00
    New HK German SP89, MP5K Semi Auto - Clipped & Pinned SEF Trigger Group Each unit includes the professionally converted SEF clipped and pinned housing and semi-auto-only trigger pack. All trigger groups include a new 3rd-generation 9mm ejector lever...
    HKP-01691
    $0.00
    Out Of Stock
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    $0.00
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  • New - HKP MP5 & MP5K 9mm Ambidextrous 0,1 Trigger Pack - HKP-17230 HK MP5, MP5K 9mm Ambidextrous 0,1 Trigger Pack
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    HK MP5, MP5K 9mm Ambidextrous 0,1 Trigger Pack

    HKP HK Parts

    $479.95
    HKP MP5 & MP5K 9mm Ambidextrous 0,1 Trigger Pack Finally a lower cost alternative to the spendy and hard to find all German HK FBI or 0,1 ambi trigger packs. Now for the first time, we have the ever popular trigger pack available in an...
    HKP-17230
    $479.95
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    $479.95
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  • New - H&K MP5 "F" Ambidextrous Sling Loop Weldment - HKP-00100 HK MP5 "F" Ambidextrous Sling Loop Weldment
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    HK MP5 "F" Ambidextrous Sling Loop Weldment

    H&K Heckler & Koch

    $19.95
    HK German Factory MP5 F Ambidextrous Sling Loop This is the factory HK part that is on all MP5F models. A great upgrade for that custom build or for those who want to have the ability to have an ambidextrous sling loop at the front of the...
    HKP-00100
    $19.95
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    $19.95
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  • New - H&K MP5F & 40/10 Cocking Tube Support - HKP-00097 HK MP5 F Cocking Tube Support - 9mm, 10mm, .40 S&W
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    HK MP5 F Cocking Tube Support - 9mm, 10mm, .40 S&W

    H&K Heckler & Koch

    $299.95
    HK German MP5 F & 40/10 Cocking Tube Support This is the factory correct MP5 F or MP5 40/10 newer style cocking tube support. Compatible With: MP5 40 MP5 10mm True MP5 F models Custom HK builds and clones with the proper F parts
    HKP-00097
    $299.95
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    $299.95
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  • New - H&K Full Auto Trigger Box - SEF - MP5/94/G3/91/93/53/33 - HKP-02178
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    HK MP5, HK94, G3, HK91, HK3, HK53, HK93 Trigger Housing - Full Auto SEF

    H&K Heckler & Koch

    $299.95
    H&K Full Auto Trigger Box - SEF - MP5/94/G3/91/93/53/33 This genuine HK trigger box can house either the full auto SEF trigger pack internals or be converted to the semi-auto configuration. Not for use with ambidextrous trigger packs, selectors, or...
    HKP-02178
    $299.95
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    $299.95
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  • On Sale
    HK MP5, 90 Series, AP5 Sear - Friction - SEF and Navy Trigger Packs HK MP5, 90 Series, AP5 Sear - Friction - SEF and Navy Trigger Packs
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    HK MP5, 90 Series, AP5 Sear - Friction - SEF and Navy Trigger Packs

    MKE

    Now: $4.95
    Was: $8.95
    MKE AP5, MP5, 90 Series Friction Sear for SEF and Navy Trigger Packs Steel friction sear manufactured in Turkey for HK 90 Series trigger packs. Designed for use in SEF and Navy-style configurations, this component is commonly referred to as the catch...
    HKP-22521
    Now: $4.95
    Was: $8.95
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    Now: $4.95
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  • On Sale
    HK MP5K, AP5-P End Cap - Incomplete - BLEMISHED HK MP5K, AP5-P End Cap - Incomplete - BLEMISHED
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    HK MP5K, AP5-P End Cap - Incomplete - BLEMISHED

    MKE

    Now: $19.95
    Was: $27.95
    MKE MP5K, AP5-P Incomplete End Cap - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. MKE manufactured end cap for AP5-P and HK MP5K pattern firearms...
    HKP-99397
    Now: $19.95
    Was: $27.95
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    Now: $19.95
    Was: $27.95
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  • On Sale
    HK UMP/USC (.40 S&W/.45 ACP/9mm) Factory German Sling - USED HK UMP/USC (.40 S&W/.45 ACP/9mm) Factory German Sling - USED
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    HK UMP/USC (.40 S&W/.45 ACP/9mm) Factory German Sling - USED

    H&K Heckler & Koch

    Now: $48.95
    Was: $65.95
    HK UMP/USC (.40 S&W/.45 ACP/9mm) Factory German Sling - USED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL.
    HKP-00613-USED
    Now: $48.95
    Was: $65.95
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    Now: $48.95
    Was: $65.95
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  • HK MR762 A4 Barrel - 16.5" - Proofed HK MR762 A4 Barrel - 16.5" - Proofed
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    HK MR762 A4 Barrel - 16.5" - Proofed

    H&K Heckler & Koch

    $459.95
    HK MR762 A4 Barrel - 16.5" - Proofed Factory proofed HK MR762 A4 16.5" barrel with standard 5/8x24 RH thread pitch. Compatible With: HK MR762 A4
    HKP-22453
    $459.95
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    $459.95
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  • On Sale
    HK G3,91,PTR, 93,33 & MP5, 94 Hammer Strut - USED H&K Heckler & Koch HKP-15445-USED HK G3,91,PTR, 93,33 & MP5, 94 Hammer Strut - USED H&K Heckler & Koch HKP-15445-USED
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    HK MP5, HK90 Series Hammer Strut - USED

    H&K Heckler & Koch

    Now: $5.21
    Was: $9.95
    HK MP5, G3, 91, PTR, 93, 33, HK94 Hammer Strut - USED   SOLD INDIVIDUALLY   USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK German Hammer Strut for 90 series rifles and pistols. A perfect...
    HKP-15445-USED
    Now: $5.21
    Was: $9.95
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    Now: $5.21
    Was: $9.95
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  • On Sale
    HK91, G3 Bolt Locking Lever Set - USED
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    HK91, G3 Bolt Locking Lever Set - USED

    H&K Heckler & Koch

    Now: $19.22
    Was: $24.95
    HK91, G3 Bolt Locking Lever Set - USED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. This is the bolt carrier locking lever set that retains the bolt head to the carrier...
    HKP-02683-USED
    Now: $19.22
    Was: $24.95
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    Now: $19.22
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