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
    Used - Glock 19 Magazine Replacement Kit - HKP-20854
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    Glock 19 Magazine Parts Replacement Kit

    HKP HK Parts

    Now: $7.95
    Was: $15.95
    Glock 19 Magazine Parts Replacement Kit Includes: 9 round coil spring Locking plate Floor plate. This replacement kit includes the new style magazine insert.  All 3 components are factory Glock parts. Compatible With: Glock 19
    HKP-20854
    Now: $7.95
    Was: $15.95
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    Now: $7.95
    Was: $15.95
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  • New - H&K HK P7M8/P7M13 Piston Retaining Roll Pin - HKP-16435
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    HK P7M8, P7M13 Retaining Roll Pin - Gas Piston

    H&K Heckler & Koch

    $4.95
    HK P7 M8, M13 Piston Retaining Roll Pin
    HKP-16435
    $4.95
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    $4.95
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  • Out Of Stock
    New - H&K HK MR556/MR762/416/417/AR-15 Selector Detent Spring - HKP-02657

    HK416, MR556, HK417, MR762, AR-15 Selector Detent Spring

    H&K Heckler & Koch

    $9.99
    Heckler and Koch HK MR556/MR762/416/417/AR15 Selector Detent Spring HK German manufacture. Compatible With: HK MR556 HK 416 HK MR762 HK 417 AR15, M4 & M16
    HKP-02657
    $9.99
    Out Of Stock
    Qty in Cart: 0
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    $9.99
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  • New - H&K HK MR556 Incomplete Upper Receiver - HKP-02615 HK MR556 Incomplete Upper Receiver
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    HK MR556 Incomplete Upper Receiver

    H&K Heckler & Koch

    $440.95
    HK German Stripped HK MR556 Upper Receiver New factory German incomplete and unmarked MR556 upper receiver. Compatible With: HK MR556 HK MR223 HK 416 Do you need a matching lower for your build?  STS416 A5 LOWER - Specialized Tactical...
    HKP-02615
    $440.95
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    $440.95
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  • Out Of Stock
    On Sale
    New - HKP MP5, 94 Operator's Manual - HKP-15765 HK MP5, HK94 Operator's Manual

    HK MP5, HK94 Operator's Manual

    HKP HK Parts

    Now: $12.95
    Was: $14.95
    HKP MP5, 94 Operator's Manual The MP5, 94 or other HK MP5 clones Operator Manual is 36 pages of a page by page translation of the original Bundeswehr ( German Federal Army) instruction manual for their service machine pistol, the MP5. There are 26...
    HKP-15765
    Now: $12.95
    Was: $14.95
    Out Of Stock
    Qty in Cart: 0
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    Now: $12.95
    Was: $14.95
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  • New - H&K Cleaning Rod For HK Cleaning Brushes - HKP-01821 Cleaning Brush Rod
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    Cleaning Brush Rod

    H&K Heckler & Koch

    $19.95
    H&K Cleaning Rod For HK Cleaning Brushes HK chamber face brush, Receiver Brush, Flute Cleaning Brush Cleaning Rod For All US Threaded cleaning Brushes (8-32 thread type). This rod is an aluminum rod that is made to clean all HK rifles and machine...
    HKP-01821
    $19.95
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    $19.95
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  • On Sale
    HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Cerakote HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Cerakote
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    HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Cerakote

    MKE

    $51.95 - $54.95
    HK MP5 30 Round Magazine - MKE - AP5 - Cerakote Colors These MKE 30 round magazines are the perfect addition or replacement for your AP5 or MP5. Constructed of heat-treated steel for lasting strength and consistent performance in harsh tactical...
    HKP-21341-M
    $51.95 - $54.95
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  • New - H&K / HKP 14 Round HK VP9SK Magazine – Black - HKP-20888 HK VP9SK, P30SK Magazine - 9mm - 14 Round - Floorplate with Pinky Rest
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    HK VP9SK, P30SK Magazine - 9mm - 14 Round - Floorplate with Pinky Rest

    HKP HK Parts / Heckler & Koch

    $69.95
    HK VP9SK & P30SK 9mm – 14 Round Magazine New German VP9SK/P30SK HK manufacture 10 round magazine body, follower, spring, locking plate combined with the HK Parts +2 magazine extension installed & ready to use. This magazine has the same...
    HKP-20888
    $69.95
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    $69.95
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  • On Sale
    New - LSC/PTR Receiver Flat- MP5 9mm - HKP-01431 HK MP5 Receiver Flat- 9mm
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    HK MP5 Receiver Flat- 9mm

    LSC

    Now: $215.95
    Was: $239.95
    MP5 Receiver Flat - PTR/LSC New PTR 9mm Receiver Flat made on the original LSC tooling. This flat is considered by many to be the most sought-after HK flat available on the market and perfect for that HK custom build. This item is not considered an FFL...
    HKP-01431
    Now: $215.95
    Was: $239.95
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    Now: $215.95
    Was: $239.95
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  • On Sale
    New - SB Tactical HK MP5K, HK SP89, HK SP5K Side Folding Brace w/ HK Parts Adapter - HKP-19451 HK MP5K, SP89, SP5K Brace With Direct Fit Adapter
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    HK MP5K, SP89, SP5K Brace With Direct Fit Adapter

    SB Tactical

    Now: $194.95
    Was: $229.95
    Side Folding Pistol Stabilizing Brace with HK Parts Adapter - HK MP5K, SP89, SP5K & Clones Side Folding Pistol Stabilizing Brace with HK Parts Adapter. The HK Parts adapter offers a QD attachment point and is made from hard coat anodized aluminum...
    HKP-19451
    Now: $194.95
    Was: $229.95
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    Now: $194.95
    Was: $229.95
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  • New - H&K VP9, HK VP40 Backstrap - Small - Black - HKP-16814 HK VP9, P40 Backstrap - Small
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    HK VP9, P40 Backstrap - Small

    H&K Heckler & Koch

    $29.95
    Heckler and Koch Small Black Backstrap for HK VP9, HK VP40 New HK German manufacture. Compatible With: VP9 VP40 VP9F VP9K
    HKP-16814
    $29.95
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    $29.95
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  • On Sale
    New - AIM Sports 4x Prismatic Scope w/ Riser - HKP-19534 Tri Illuminated Scope with Fiber Optic Sight
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    Tri Illuminated Scope with Fiber Optic Sight

    AIM

    Now: $92.95
    Was: $109.95
    4X32 TRI ILLUMINATED SCOPE W/FIBER OPTIC SIGHT ARROW PLX RETICLE 4X32 TRI ILLUMINATED SCOPE W/FIBER OPTIC SIGHT MIL-DOT RETICLE 4 X 32 Prismatic Scope With Illuminated Reticle. The optic is 100% shock resistant, recoil and fog proof, as well as entirely...
    HKP-19534
    Now: $92.95
    Was: $109.95
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    Now: $92.95
    Was: $109.95
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