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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  • HK USP Magazine Follower - 9mm, .40 S&W HK USP Magazine Follower - 9mm, .40 S&W
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    HK USP Magazine Follower - 9mm, .40 S&W

    H&K Heckler & Koch

    $9.95
    HK USP 9mm / 40 S&W Magazine Follower Compatible With: HK USP 9mm HK USP .40
    HKP-02164-M
    $9.95
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    $9.95
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  • Out Of Stock
    New - H&K 30 Round HK416/MR556 Spring - Magazine - HKP-13483

    HK416, MR556 Magazine Spring - 30 Round

    H&K Heckler & Koch

    $12.95
    HK German HK MR556 & HK 416 Magazine Spring  
    HKP-13483
    $12.95
    Out Of Stock
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    $12.95
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  • New - GSG9 HK G36 (5.56/.223) Incomplete Bolt Head - HKP-00802 HK G36 Bolt Head, Incomplete
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    HK G36 Bolt Head, Incomplete

    GSG9

    $225.95
    G36 Incomplete Bolt Head - USA G36 bolt head allows the use of double stack magazines in your SL8 conversion to high-capacity G36, Magpul, or AR15 magazines.   
    HKP-00802
    $225.95
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    $225.95
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  • New - H&K G36/SL8 (5.56/.223) Cocking Handle Axle Pin - HKP-01877
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    HK G36, SL8 Cocking Handle Axle Pin

    H&K Heckler & Koch

    $11.95
    HK German G36 & SL8 Cocking Handle Axle Pin This is the rivet pin that is used to attach the swiveling cocking handle to the body of the carrier. These can be replaced as they break and wear.  Compatible With: HK G36 HK SL8
    HKP-01877
    $11.95
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  • Out Of Stock
    New - H&K 23E (5.56/.223) Bolt Carrier - HKP-00330 HK23E Bolt Carrier

    HK23E Bolt Carrier

    H&K Heckler & Koch

    $799.95
    New HK German 23E .223 / 5.56 Bolt Carrier Date coded and marked HK23-E. These are the last HK23E carriers that HK Germany has left. We are told that once these are gone, there will be no more. They are a great spare part to have, and they are getting...
    HKP-00330
    $799.95
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    $799.95
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  • New - HKP MP5 40/10 30 Round Magazine Body - HKP-16508 HK MP5, MP5K Magazine Body - .40 S&W / 10mm - 10 Round - Straight
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    HK MP5, MP5K Magazine Body - .40 S&W / 10mm - 10 Round - Straight

    HKP HK Parts

    $29.95
    HKP MP5 40/10 30 Round Magazine Body New US Made MP5 40/10 30 Round Magazine Housing Body. Each magazine body comes black in color. Each body counts as one US made compliant part and is a great item to have on hand to replace other junk mag bodies or...
    HKP-16508
    $29.95
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  • New - HKP Tactical Rail - 2" - HK91/93 - HKP-02527 HK91, HK93 Rail - Tactical - 2"
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    HK91, HK93 Rail - Tactical - 2"

    HKP HK Parts

    $16.95
    HKP HK Parts 2" Tactical Rail  for HK91, PTR 91, and the HK93 (with tactical grip) The six mounting screws are also included with each rail. This rail will fit on either the left or right side or the bottom of the PTR and HK91/93 tactical handguards...
    HKP-02527
    $16.95
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  • New - H&K HK94 SD Style Barrel Shroud - HKP-02100
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    HK94 Barrel Shroud - SD Style

    H&K Heckler & Koch

    $99.95
    Heckler and Koch HK94 SD Style Barrel Shroud Features: Fits all factory HK94 rifles or barrels Made to factory German HK94 specs.  Designed to cover the 16" barrel Provides a neat SD style look without the cost of a full conversion Made of...
    HKP-02100
    $99.95
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  • New - Strike Industries QD & Sling Hook Sling Attachement - HKP-17381
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    QD and Sling Hook Sling Attachement

    Strike Industries

    $29.95
    Ambush QD Sling Loop The Strike Industries Ambush low profile sling loop is the lowest profile sling loop designed for the MIL-STD-1913 rail. Made of solid steel, its unique locking bar design system allows for it to be lightweight and durable. Because...
    HKP-17381
    $29.95
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  • New - H&K MR556 A4 11″ 5.56 M-LOK Upper Receiver Kit - HKP-21910 HK MR556 A4 Upper Receiver Kit - 11"-  M-LOK
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    HK MR556 A4 Upper Receiver Kit - 11"- M-LOK

    H&K Heckler & Koch

    $1,998.95
    H&K Heckler & Koch MR556 Upper Receiver Kit A4 -11″ - M-LOK  This kit includes a complete upper receiver/barrel assembly, allowing Mil-Spec 5.56mm AR-style rifles to be retrofitted to HK’s piston and pusher rod system. This...
    HKP-21910
    $1,998.95
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  • On Sale
    New - HKP (5.56/.223) A5 4 Prong Flash Hider - Threaded 1/2x28 - HKP-21275 HK416, MR556 Flash Hider - A5 4-Prong Style - Threaded 1/2x28
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    HK416, MR556 Flash Hider - A5 4-Prong Style - Threaded 1/2x28

    HKP HK Parts

    Now: $19.95
    Was: $39.95
    HKP (5.56x.223) A5 4 Prong Flash Hider - Threaded 1/2x28 Made from ordnance grade steel, heat treated, and nitrided for longevity. Machined correctly to reduce tuning fork noise. Counts as one US made compliant part. Available exclusively at HK Parts...
    HKP-21275
    Now: $19.95
    Was: $39.95
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    Now: $19.95
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  • On Sale
    New - JMAC G36/HK33 Compensator 15F KeyMount (KeyMicro) - HKP-21254 HK G36, HK33 Compensator - 15x1 RH - KeyMount (KeyMicro)
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    HK G36, HK33 Compensator - 15x1 RH - KeyMount (KeyMicro)

    JMAC Customs

    Now: $59.95
    Was: $99.95
    JMAC G36/HK33 (5.56/.223) Recoil Reduction Device - 2 Port Compensator 15-1 Threads - KeyMount (KeyMicro) Can be permanently attached to a 14.5" barrel to achieve 16" OAL. Compatible With: HK G36C (NOT compatible with first gen. HK G36C & Tommy...
    HKP-21254
    Now: $59.95
    Was: $99.95
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    Now: $59.95
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