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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  • Out Of Stock
    New - H&K XX Marked 9mm Strutted Hammer - HKP-00148 HK XX Marked 9mm Strutted Hammer
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    HK XX Marked 9mm Strutted Hammer

    H&K Heckler & Koch

    $159.95
    HK XX Marked 9mm Strutted Hammer Compatible With: MP5, 94, SP5 MP5K, SP89, SP5K MP5 40, MP5 10<
    HKP-00148
    $159.95
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  • On Sale
    HK416, MR556 ARC-Fire Trigger - V2 with Mil-Spec Selectors - Ambi Controls HK416, MR556 ARC-Fire Trigger - V2 with Mil-Spec Selectors - Ambi Controls
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    HK416, MR556 ARC-Fire Trigger - V2 with Mil-Spec Selectors - Ambi Controls

    AS Designs / ST Inc

    Now: $224.96
    Was: $249.95
    AS Designs V2 ARC-Fire Trigger for HK416 and MR556 with Mil-Spec Ambidextrous Selector Levers The ARC-Fire (Active Reset Clutch) trigger is an innovative trigger system designed to reset the trigger...
    HKP-22890-M
    Now: $224.96
    Was: $249.95
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    ACR Style Folding Stock - Picatinny Mount - Universal ACR Style Folding Stock - Picatinny Mount - Universal
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    ACR Style Folding Stock - Picatinny Mount - Universal

    Global Ordnance

    Now: $157.46
    Was: $174.95
    Global Ordnance UFS 1913 Universal Folding Stock The Global Ordnance UFS 1913 Universal Folding Stock is designed for firearms equipped with a 1913 Picatinny rear rail. Built for versatility and...
    HKP-22542-M
    Now: $157.46
    Was: $174.95
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    Was: $174.95
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  • HK MR762 A4 Gas Block - Complete HK MR762 A4 Gas Block - Complete
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    HK MR762 A4 Gas Block - Complete

    H&K Heckler & Koch

    $307.95
    H&K HK MR556 A4 Gas Block - Complete Factory HK MR762 A4 adjustable gas block ideal for switching between suppressed and unsuppressed firing.   Compatible With:
    HKP-22422
    $307.95
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  • HK USP9 Magazine - 10 Round - Standard Floorplate H&K Heckler & Koch HKP-22415 HK USP9 Magazine - 10 Round - Standard Floorplate H&K Heckler & Koch HKP-22415
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    HK USP Magazine - 9mm - 10 Round - Standard Floorplate

    H&K Heckler & Koch

    $54.95
    HK USP9 Magazine - 10 Round - Standard Floorplate Factory 10-round magazine for the HK USP9, featuring a standard floorplate. Compatible With: HK USP 9mm
    HKP-22415
    $54.95
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  • Out Of Stock
    Compact Vertical Foregrip with Hand stop - M-LOK Compact Vertical Foregrip with Hand stop - M-LOK
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    Compact Vertical Foregrip with Hand stop - M-LOK

    JMK

    $88.95
    Compact Vertical Foregrip with Hand stop - M-LOK The JMK Vertical Foregrips are ideally suited for applications with restricted space. Equipped with a rapid, straightforward M-LOK attachment system,...
    HKP-22406-M
    $88.95
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  • On Sale
    HK91, G3 Backplate Assembly - Used FMP HK CONTRACT HKP-22374-USED HK91, G3 Backplate Assembly - Used FMP HK CONTRACT HKP-22374-USED
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    HK91, G3 Backplate Assembly - Surplus

    FMP HK CONTRACT

    Now: $13.46
    Was: $14.95
    FMP HK91, G3 Backplate Assembly - Used/Surplus G3 surplus backplate assembly manufactured by FMP on HK tooling. Compatible With: HK G3, HK91
    HKP-22374
    Now: $13.46
    Was: $14.95
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  • HK G3, HK33, HK93 Bayonet w/Scabbard - NOS H&K Heckler & Koch HKP-22366 HK G3, HK33, HK93 Bayonet w/Scabbard - NOS H&K Heckler & Koch HKP-22366
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    HK G3, HK33, HK93 Bayonet with Scabbard - NOS

    H&K Heckler & Koch

    $227.95
    HK G3, HK33, HK93 Bayonet with Scabbard - New Old Stock Genuine German HK military surplus bayonet in original wrap. These are the 12-groove version of the popular military bayonet.  Scabbard is...
    HKP-22366
    $227.95
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  • On Sale
    New - MKE AP5, MP5 Front Sight Tower - HKP-22220 HK MP5, AP5 Front Sight Tower
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    HK MP5, AP5 Front Sight Tower

    MKE

    Now: $37.46
    Was: $49.95
    MKE AP5, MP5 Front Sight Tower The front sight tower is a critical component for a perfect build. The MKE front sight tower is great option for new builds or replacement of damaged units. Compatible...
    HKP-22220
    Now: $37.46
    Was: $49.95
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  • New - H&K CC9 Optic Ready Cover Plate - HKP-22141
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    HK CC9 Optic Cover Plate - Optic Ready

    H&K Heckler & Koch

    $51.95
    H&K CC9 Optic Ready Cover Plate German-manufactured cover plate for the optic cut on the H&K CC9 pistol. Installed when an optic is not mounted.
    HKP-22141
    $51.95
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  • Out Of Stock
    On Sale
    New - B&T 39mm QD Skeleton Mount for Aimpoint ACRO - HKP-21730-M Picatinny Optic Mount - 39mm - Skeleton Mount - Aimpoint ACRO
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    Picatinny Optic Mount - 39mm - Skeleton Mount - Aimpoint ACRO

    B&T Brugger & Thomet

    $95.63 - $150.00
    B&T 39mm QD Skeleton Mount for Aimpoint ACRO The B&T QD "Skeleton" mount for Aimpoint® Acro offers a 39mm elevated profile for improved sight alignment, ideal for night vision setups requiring...
    HKP-21730-M
    $95.63 - $150.00
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  • On Sale
    New - SchleTek Carbon Cleaner 150 ml Pump - HKP-21729
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    Carbon-Cleaner - 150 ml Pump

    SchleTek

    Now: $15.26
    Was: $16.95
    SchleTek Carbon Cleaner 150 ml Pump SchleTek Carbon Cleaner is a powerful, fast-acting solution designed to remove stubborn carbon buildup from firearms, suppressors, bolts, gas systems, and other...
    HKP-21729
    Now: $15.26
    Was: $16.95
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