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 - Outer Impact HK Standard Kit Pyramid Sight System - HKP-19963 Outer Impact HK Standard Kit Pyramid Sight System
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    Outer Impact HK Standard Kit Pyramid Sight System

    Outer Impact

    $79.95
    The Heckler and Koch Pyramid Sight System The Pyramid Sight system offers four configurations (starter, standard, firefly, and master) for maximum flexibility. All of the HK pyramid sights systems feature steel front and steel rear sight bases...
    HKP-19963
    $79.95
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  • On Sale
    New - Franklin Armory BFSIII 22-C1 for Ruger 10/22 - HKP-19865 Ruger Binary Trigger - Curved - BFSIII - 10mm and .22LR
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    Ruger Binary Trigger - Curved - BFSIII - 10mm and .22LR

    FA Franklin Armory

    Now: $269.99
    Was: $299.95
    Franklin Armory BFSIII 22-C1 for Ruger 10/22 The Binary Firing System GEN 3 (BFSIII) is a 3-position trigger.   Position 1: Safe. Will not fire Position 2: Semi. Fires 1 round per pull Position 3: Binary. Fires 1 round on pull and 1 round on...
    HKP-19865
    Now: $269.99
    Was: $299.95
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    Now: $269.99
    Was: $299.95
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  • New - B&T TP9/TP380 Stock Conversion Kit - HKP-19128 B&T TP9, MP9, TP380 Stock Conversion Kit
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    B&T TP9, MP9, TP380 Stock Conversion Kit

    B&T Brugger & Thomet

    $147.95
    Stock Conversion Kit - TP9, MP9, TP380 Converts B&T's telescopic brace into a telescopic stock. Compatible with B&T part number BT-20522 for TP9, TP380. Compatible With: B&T TP9, MP9 B&T TP380
    HKP-19128
    $147.95
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    $147.95
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  • New - KDG HK MR556 13.75" M-LOK Rail System - FDE - HKP-19243 HK416, MR556 Rail System - 13.75" - M-LOK, Picatinny - FDE
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    HK416, MR556 Rail System - 13.75" - M-LOK, Picatinny - FDE

    KDG Kinetic Development Group

    $399.95
    Rail System - 13.75" - Brown - M-LOK - HK MR556 The New KDG HK 556 M-LOK rails are direct mount rail system, replacing the factory HK 556 rail systems. These new rails are identical in design to their big brother, the KDG HK 762 M-LOK Rail system. Like...
    HKP-19243
    $399.95
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    $399.95
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  • New - H&K VP9SK, VP40SK Backstrap - Medium - OD Green - HKP-18583 HK VP9SK, VP40SK Backstrap - Medium - OD Green
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    HK VP9SK, VP40SK Backstrap - Medium - OD Green

    H&K Heckler & Koch

    $24.95
    H&K VP9SK, VP40SK Backstrap - Medium - OD Green New HK German manufacture. Compatible With: HK VP9SK HK VP40SK
    HKP-18583
    $24.95
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    $24.95
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  • New - H&K Grip Panel, Left Side - Medium - VP9SK - FDE - HKP-18585 HKVP9SK Grip Panel - Left Side - Medium - FDE
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    HKVP9SK Grip Panel - Left Side - Medium - FDE

    H&K Heckler & Koch

    $16.95
    Heckler and Koch Grip Panel, Left Side - Medium - VP9SK - FDE New HK German manufactured. Left side medium size perfect for spare or for custom stippling projects. Drop-in part for your HK VPSK pistol. Compatible With: HK VP9SK
    HKP-18585
    $16.95
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    $16.95
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  • On Sale
    New - HKP Flat Brim Snapback Hat - Black & Red - HKP-20461 HKP Hat - Snapback - Flat Brim - Black and Red
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    HKP Hat - Snapback - Flat Brim - Black and Red

    HKP HK Parts

    Now: $13.45
    Was: $19.95
    HKP Flat Brim Snapback Hat - Black & Red Get your hands on some of our premium hats!  Official HKP merchandise 5" wide HKP logo 100% cotton Structured 4 sewn eyelets Matching color sweatband Plastic adjustable snap Firm front panel Size: OSFM -...
    HKP-20461
    Now: $13.45
    Was: $19.95
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    Now: $13.45
    Was: $19.95
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  • On Sale
    New - HKP Short Sleeve Tee Female - OD Green - HKP-21017-M
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    HKP Women's Shirt - Short Sleeve - OD Green

    HKP HK Parts

    Now: $9.99
    Was: $14.95
    HKP Short Sleeve Shirt for Women - OD Green Get your hands on some of our premium new apparel! Featuring our sleek new logo printed over soft cotton, this shirt is certain to catch an eye at the range! Features: Female fit Fine cotton High fidelity DTG...
    HKP-21017-M
    Now: $9.99
    Was: $14.95
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  • New - H&K Tactical Pistol Bag - Tan - HKP-20288 HK Tactical Pistol Bag - Tan
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    HK Tactical Pistol Bag - Tan

    H&K Heckler & Koch

    $69.95
    H&K Tactical Pistol Bag - Tan Keep your handgun safe and secure with the HK tactical nylon case. This heavy duty case will accommodate two pistols, accessories and two magazines. Includes movable, velcro-backed modular double magazine pouch, frame...
    HKP-20288
    $69.95
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    $69.95
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  • New - HKP PTR HK91 / PTR-91 Bolt Head Complete - HKP-20140 HK91, PTR-91 Bolt Head Complete
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    HK91, PTR-91 Bolt Head Complete

    PTR

    $179.95
    HKP PTR HK91 / PTR-91 Bolt Head Complete New PTR bolt head complete with extractor, extractor spring, roller retainer plate, pair of 8mm rollers. Ready to drop in to replace your worn out bolt head. Bolt head counts as 1 US made compliance part for the...
    HKP-20140
    $179.95
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    $179.95
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  • On Sale
    New - HKP HK MP5, 93/53/33 AR Brace/Stock Adapter w/ QD Sling Attachment Point - Red - HKP-19786 HK33, HK53, HK93, MP5 Stock or Brace Adapter - AR Style - QD Sling Attachment Point - Red
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    HK33, HK53, HK93, MP5 Stock or Brace Adapter - AR Style - QD Sling Attachment Point - Red

    HKP HK Parts

    Now: $49.95
    Was: $124.99
    HKP HK MP5, 93/53/33 AR Brace/Stock Adapter w/ QD Sling Attachment Point - Red   Each AR stock, brace adapter is made from a solid billet of CNC machined aircraft grade aluminum with QD Sling Attachment Points. Properly buffered with factory...
    HKP-19786
    Now: $49.95
    Was: $124.99
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    Now: $49.95
    Was: $124.99
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  • New - Franklin Armory BFSIII HK-C1 - Trigger Group - SEF Navy Style - HK93, HK33 - HKP-19647 HK33, HK53, HK93 HK-C1 BFSIII Trigger Group - SEF Navy Style
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    HK33, HK53, HK93 HK-C1 BFSIII Trigger Group - SEF Navy Style

    H&K Hechler & Koch / FA Franklin Armory

    $879.95
    Franklin Armory BFSIII HK-C1 - Trigger Group - SEF Navy Style - HK93, HK33 3 Position HK Binary Trigger Group Binary triggers count as 4 922r compliant components. The components that count towards 922r compliance include the trigger pack box, trigger,...
    HKP-19647
    $879.95
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    $879.95
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