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 HK MR556//MR762/416 Bolt Catch Plunger - HKP-02655

    HK416, MR556, MR762 Bolt Catch Plunger

    H&K Heckler & Koch

    $9.95
    Heckler and Koch HK MR556 and HK416 Bolt Catch Plunger Compatible With: HK416, MR556 HK MR762
    HKP-02655
    $9.95
    Out Of Stock
    Qty in Cart: 0
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    $9.95
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  • New - HKP HK 93/53/33 (5.56/.223) Receiver Flat With Weldment Set - HKP-00006
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    HK33, HK53, HK93 Receiver Flat - Complete Weldment Set

    HKP HK Parts

    $229.95
    HK .223, 556, & 300 BLK Receiver Flat With Complete Weldment Set Combo   Each flat and weldment set comes with 223/556/300BLK complete as a builders combo ready to assemble.   Compatible With: HK93, HK33, & HK53 Style Builds 300...
    HKP-00006
    $229.95
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    $229.95
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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
    New - HKP HK VP9/VP40 Enhanced Support Sleeve - Black - BLEMISHED - HKP-18677-BL-B HK VP9, VP40 Enhanced Support Sleeve - Black - BLEMISHED
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    HK VP9, VP40 Enhanced Support Sleeve - Black - BLEMISHED

    HKP HK Parts

    Now: $9.95
    Was: $19.95
    HKP HK VP9/VP40 Enhanced Support Sleeve COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The support sleeve in the VP series pistols is a crucial component that...
    HKP-18677-BL-B
    Now: $9.95
    Was: $19.95
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  • New - HKP 9mm Slotted Micro Comp - Threaded 13.5x1 LH - HKP-21653 HK VP9 Micro Comp - Slotted - Threaded 13.5x1 Left Hand
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    HK VP9 Micro Comp - Slotted - Threaded 13.5x1 Left Hand

    HKP HK Parts

    $29.95
    HKP 9mm Slotted Micro Comp - Threaded 13.5x1 LH The HK Parts Micro Comp is a lightweight micro comp that also functions as a thread protector. Quickly thread the micro comp on any 13.5x1 left-hand threaded 9mm barrel. Developed to migitgate recoil to...
    HKP-21653
    $29.95
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    $29.95
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  • New - H&K HK P7M8/P7M13 Detent, Piston - HKP-16327
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    HK P7M8, P7M13 Detent - Gas Piston

    H&K Heckler & Koch

    $9.95
    H&K HK P7M8/P7M13 Detent, Piston Compatible With: P7M8 P7M13
    HKP-16327
    $9.95
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    $9.95
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  • Out Of Stock
    New - Trijicon HK USP Night Sight Set - HKP-01609 HK USP Night Sight Set

    HK USP Night Sight Set

    Trijicon

    $127.95
    Trijicon - Tritium Night Sight, Fits HK USP, Green/Green, 3 Dot Trijicon Bright & Tough Night Sights are 3 dot iron sights that increase night fire shooting accuracy by as much as five times over conventional sights. Equally impressive, they do so...
    HKP-01609
    $127.95
    Out Of Stock
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  • New - H&K HK G36/SL8 Bipod - Black - HKP-00270 HK G36, SL8 Bipod
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    HK G36, SL8 Bipod

    H&K Heckler & Koch

    $449.95
    New HK G36 & HK SL8 Factory Bipod Heckler & Koch German made. Manufactured with steel-reinforced HK composites. Compatible With: HK G36 HK SL8-6 Newer black rifles or the SL8-1 with a proper forearm HK G36K - Must be an early style that has a...
    HKP-00270
    $449.95
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    $449.95
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  • New - H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Sear Spring - HKP-01866
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    HK G36, UMP Sear Spring

    H&K Heckler & Koch

    $8.95
    HK UMP, USC, G36, & SL8 Sear Spring This part is used in conjunction with the sear in the trigger body of the lower.  
    HKP-01866
    $8.95
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    $8.95
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  • New - H&K 91/G3 (7.62x51/.308) Shell Deflector - Weld On - HKP-12747 HK91, G3 Shell Deflector - Weld On
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    HK91, G3 Shell Deflector - Weld On

    H&K Heckler & Koch

    $18.95
    New HK German G3, 91, PTR91 Steel Case Deflector - Weld On This steel weld-on addition for the G3 military rifle was developed to help fellow soldiers from hitting each other with hot spent brass and deflect the brass forward of the shooter at...
    HKP-12747
    $18.95
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    $18.95
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  • New - UTG Quick Detach Low Profile Folding Grip - HKP-15029 Folding Grip - Quick Detach - Low Profile
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    Folding Grip - Quick Detach - Low Profile

    UTG

    $49.95
    UTG Quick Detach Low Profile Folding Grip Features: Unique knurled surface for the most solid grip Smart Posi-Lock cross bolt and spring tensioned locking plate with steel insert for the most secure installation Fully adjustable quick detachable...
    HKP-15029
    $49.95
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    $49.95
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  • New - Meprolight HK MP5, G3, 33, PTR, SP5 Night Sight Set - HKP-02564 HK MP5, G3, HK33, PTR, SP5 Night Sight Set
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    HK MP5, G3, HK33, PTR, SP5 Night Sight Set

    Meprolight

    $109.00
    Meprolight HK MP5, G3, 33, PTR, SP5 Night Sight Set  Meprolight produces a bright green night sight available for Heckler & Koch sub guns and rifles. These tritium night sight inserts are a no-brainer for a quicker, more accurate point-and-shoot...
    HKP-02564
    $109.00
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    $109.00
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