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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  • On Sale
    New - Talon Grip HK P30SK Granulate - Large - Black - HKP-20236 HK P30SK Grip Wrap for Large Backstraps - Granulate
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    HK P30SK Grip Wrap for Large Backstraps - Granulate

    Talon Grip

    Now: $17.95
    Was: $19.99
    TALON Grip - H&K P30SK - Granulate Black - Large Backstrap TALON grips are textured, stick-on gun grips that help you get a secure hold on your firearm improving performance, safety, and confidence so you maintain control. Installation is quick and...
    HKP-20236
    Now: $17.95
    Was: $19.99
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  • New - H&K 5 Round HK USC .45 ACP Magazine - Black - HKP-20041 HK USC Magazine - 5 Round - .45 ACP
    Add to Cart

    HK USC Magazine - 5 Round - .45 ACP

    H&K Heckler & Koch

    $57.95
    HK Heckler and Koch 5 Round .45 ACP Magazine for HK USC  This is the only magazine that HK offers for the HK USC unless you want to upgrade to the USC-UMP style of conversions. Compatible With: All HK USC carbines
    HKP-20041
    $57.95
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  • On Sale
    Used - H&K HK UMP Demilled Extended Rear Receiver Section - HKP-19798 HK UMP Demilled Extended Rear Receiver Section
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    HK UMP Demilled Extended Rear Receiver Section

    H&K Heckler & Koch

    Now: $689.95
    Was: $999.95
    HK German Factory UMP  Receiver Section - Extended Demilled factory HK UMP rear receiver section perfect for a USC-UMP conversion. With the folding stock attachment point intact right in front of the ejection port, this extended receiver section is...
    HKP-19798
    Now: $689.95
    Was: $999.95
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  • On Sale
    New - H&K HK MP5 9mm Single Shot Reverse Stretch Build Kit - HKP-19698 HK MP5 Build Kit - 9mm - Single Shot Reverse Stretch
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    HK MP5 Build Kit - 9mm - Single Shot Reverse Stretch

    H&K Heckler & Koch

    Now: $1,399.95
    Was: $1,519.95
    California Spec Single Shot Reverse Stretch Kit - German & USA Made Parts: This kit was built with the CA market in mind. This kit has a specially designed locking piece that once installs it renders the kit a single shot style roller lock. This kit...
    HKP-19698
    Now: $1,399.95
    Was: $1,519.95
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  • Out Of Stock
    New - Contoured Style - SEF - Match Trigger Group - HK SP5K - HKP-19496 HK MP5, MP5K, SP5K Match Trigger Group - SEF - Contoured Style

    HK MP5, MP5K, SP5K Match Trigger Group - SEF - Contoured Style

    H&K Heckler & Koch

    $0.00
    Contoured Style - SEF - Match Trigger Group - HK SP5K Upgrade your SP5K with this top-quality SEF Contoured Style RH Match Trigger Group. Ready to drop on your SP5K receiver, it serves as an excellent replacement trigger group, designed specifically for...
    HKP-19496
    $0.00
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  • Out Of Stock
    New - HK MP5K/SP5K/SP89 Vented Horizontal Forearm with Handstop - Black - HKP-19471 HK MP5K, SP5K, SP89 Vented Horizontal Handguard with Handstop

    HK MP5K, SP5K, SP89 Vented Horizontal Handguard with Handstop

    USA

    $44.95
    MP5K, SP5K, SP89 - Vented Horizontal Forearm with Handstop Each forearm will fit the MP5K or SP89 style of firearms. As an added bonus this item counts as a US made part toward 922r compliance. Each forearm has the latest enhancements and upgrades...
    HKP-19471
    $44.95
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  • Out Of Stock
    On Sale
    Used - H&K HK G36 Dual Optic With Carrying Handle - Used - HKP-00744 HK G36 Dual Optic With Carrying Handle - Used

    HK G36 Dual Optic With Carrying Handle - Used

    H&K Heckler & Koch

    Now: $1,679.95
    Was: $2,099.95
    HK G36, SL8 Dual Optic - Used PD trade in'sFactory HK G36/SL8 dual optic in used condition. This is a one time offering as far as we will not be able to get them again!Fits all: G36 G36K G36C Sl8-1, Sl8-4 & Sl8-6 models.
    HKP-00744
    Now: $1,679.95
    Was: $2,099.95
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  • New - H&K HK MR762/MR556 Buttstock Release Lever Insert Spring - HKP-16611
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    HK MR762, MR556 Buttstock Release Lever Insert Spring

    H&K Heckler & Koch

    $9.99
    H&K HK MR762/MR556 Buttstock Release Lever Insert Spring   Compatible With: HK MR556 HK MR762  
    HKP-16611
    $9.99
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  • New - H&K HK MR762/417 Upper Receiver - Incomplete - HKP-16624 HK417, MR762 Upper Receiver - Incomplete
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    HK417, MR762 Upper Receiver - Incomplete

    H&K Heckler & Koch

    $797.95
    H&K HK MR762/417 Upper Receiver - Incomplete Stripped upper receiver with threaded piston guide bushing installed. Compatible With: HK MR762 HK417
    HKP-16624
    $797.95
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  • Out Of Stock
    New - HK 416/MP5 Sling Swivel - HKP-16318 HK MP5, HK416 Sling Swivel

    HK MP5, HK416 Sling Swivel

    HKP HK Parts

    $34.95
    HK 416/MP5 Sling Swivel Sling swivel for the Walther 416 and MP5 .22 rifles. This will attach to the quad rail on the 416 to give you an attachment point for a 2 point sling. May also be used with the an MP5 that has a tri rail set up.
    HKP-16318
    $34.95
    Out Of Stock
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    $34.95
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  • Out Of Stock
    New - H&K HK P7 Series Disconnector, Sear Control Lever - HKP-01308

    HK P7 Series Disconnector, Sear Control Lever

    H&K Heckler & Koch

    $49.95
    HK P7 Series Disconnector, Sear Control Lever New HK German factory part. Compatible With: PSP P7M8 P7M10 P7M13
    HKP-01308
    $49.95
    Out Of Stock
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  • New - H&K HK Mark 23 Lockout Device Set - HKP-01547
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    HK Mark 23 Lockout Device Set

    H&K Heckler & Koch

    $29.95
    HK Mark 23/SOCOM Lockout Device Set Includes: Lockout key Lockout device
    HKP-01547
    $29.95
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