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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  • Out Of Stock
    New - H&K 17 Round HK VP9, HK P30 9mm Complete Magazine - HKP-19277 HK VP9, P30 Magazine - 17 Round - 9mm

    HK VP9, P30 Magazine - 17 Round - 9mm

    H&K Heckler & Koch

    $45.95
    H&K 17 Round HK VP9, HK P30 9mm Complete Magazine New HK German Manufacture & Factory Fresh Production. Each factory HK all-steel bodied magazine holds 17 round of 9mm ammunition for use in all P30, P30L, P30S & HK VP9, VP9L 9mm models...
    HKP-19277
    $45.95
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  • New - HKP HK MP5/91/G3/93/33/53 Picatinny Rail Mount For Front Sight Tower - HKP-16672 HK33, HK53, HK93, HK91, G3, MP5 Optic Mount - Front Sight Tower - Picatinny
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    HK33, HK53, HK93, HK91, G3, MP5 Optic Mount - Front Sight Tower - Picatinny

    HKP HK Parts

    $39.95
    FRONT SIGHT TOWER RAIL MOUNT- Lights & Lasers HK Picatinny rail mount that replaces the forearm (small) push pin and mounts to the side of the front sight tower and allows you to add sling swivels, lasers, lights & accessories. This add on is...
    HKP-16672
    $39.95
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  • New - H&K MP5, HK94 Cocking Tube Support Handle Pin - HKP-00656
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    HK MP5, HK94 Cocking Tube Support Handle Pin

    H&K Heckler & Koch

    $1.95
    HK German MP5, 94 Cocking Tube Support Handle Pin This spring pin holds the cocking handle in place on the cocking tube support. This is also the same part for the front sight roll pin for the triple frame (front sight tower). Compatible With: HK MP5...
    HKP-00656
    $1.95
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    $1.95
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  • Heckler and Koch HK USP, P2000, HK45C Enhanced Magazine Release HKP-19287-BLK HK Parts enhanced vs original magazine release comparison for HK USP showing oversized paddle design improvement
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    HK USP, P2000, HK45C Magazine Release - Enhanced

    HKP HK Parts

    $49.95
    HKP HK Parts Enhanced Magazine Release for HK US, HK P2000, and HK45C Upgrade your pistol's performance with our oversized magazine release. Crafted from durable 6061 billet aluminum, this US made component offers an expanded surface area for quicker,...
    HKP-19287-M
    $49.95
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  • New - H&K MP5, SP5 - A2 Fixed Stock - HKP-00169 HK MP5, SP5 A2 Fixed Buttstock
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    HK MP5, SP5 A2 Fixed Buttstock

    H&K Heckler & Koch

    $189.95
    HK German MP5, SP5 & HK94 - A2 Fixed Buttstock Compatible With: HK MP5, 94,  HK SP5 MP5SD MP5 F MP5 40/10 (buffered stock would be optimal) Zenith Z5-RS, Omega MP5, DT54, TPM MP5, etc. MAC-5 clones may require custom fitment. Modified...
    HKP-00169
    $189.95
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  • Out Of Stock
    New - Choate MP5K/SP89/SP5K 9mm Folding Stock - HKP-00390 HK MP5K, SP5K, SP89 Stock - Folding - 9mm

    HK MP5K, SP5K, SP89 Stock - Folding - 9mm

    Choate

    $199.95
    Choate HK MP5K, SP5K, SP89 Stock - Folding - 9mm US Made Each stock features the same quick, open steel housing and folding arm found on all HK stock offerings. Each stock is backed by the manufacturer's lifetime warranty but built tough enough that you...
    HKP-00390
    $199.95
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  • New - HKP MP5 & MP5K 9mm Magazine Floor Plate - HKP-17507 HK MP5, HK94, SP5K Magazine Floorplate - 9mm - US
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    HK MP5, HK94, SP5K Magazine Floorplate - 9mm - US

    HKP HK Parts

    $9.95
    HK MP5 & MP5K 9mm Magazine Floor Plate - US New US manufactured MP5, MP5K 9mm magazine floor plate. Made in the USA, fully heat treated and built to factory specification. A great replacement for 922r compliance as it counts as 1 US made compliant...
    HKP-17507
    $9.95
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  • On Sale
    New - HKP HK USP Pistol Light, Laser Adapter - HKP-00960 HK USP Pistol Light, Laser Adapter - Mount
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    HK USP Pistol Light, Laser Adapter - Mount

    HKP HK Parts

    Now: $14.95
    Was: $28.95
    HKP HK USP Pistol Light, Laser Adapter This is the flashlight adapter needed for all HK USP Full Size Pistols to attach an aftermarket light or laser to the bottom rail of the firearm since HK USP's use a proprietary rail system. Made from hard coat...
    HKP-00960
    Now: $14.95
    Was: $28.95
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  • Out Of Stock
    New - RCM HK MP5/SP5 #27/90 Degree Locking Piece - HKP-21334 HK MP5, SP5 Locking Piece #27 - 90 degree

    HK MP5, SP5 Locking Piece #27 - 90 degree

    RCM

    $34.95
    HK MP5, SP5 Locking Piece #27 - 90 degree Machined and properly heat treated from ordnance grade steel.  A must have component for users running a suppressed set up or cycling a variety of ammunition. This will assist with fine-tuning pistol...
    HKP-21334
    $34.95
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  • New - HKP HK P30/P30L Low Profile Magwell - HKP-21150-M HK P30, P30L Magwell - Low Profile
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    HK P30, P30L Magwell - Low Profile

    HKP HK Parts

    $59.95
    HK P30, P30S & P30L Tactical Low Profile, EDC Magwell - 9mm & .40 Cal This low-profile mag-well is for the average everyday P30 owner who would like the enhancements and competitive advantage a mag-well offers without the bulk of the larger...
    HKP-21150-M
    $59.95
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  • New - H&K HK 45/45C/USP/P30 New Style Light Firing Pin Block Spring - HKP-01955 HK P30, HK45, HK45C, USP Firing Pin Block Spring - Light- New Style
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    HK P30, HK45, HK45C, USP Firing Pin Block Spring - Light- New Style

    H&K Heckler & Koch

    $7.74
    H&K HK 45/45C/USP/P30 New Style Light Firing Pin Block Spring This part is commonly used with the light trigger return spring (shown below) for a light trigger pull conversion. This spring is one of the springs used to convert P2000,...
    HKP-01955
    $7.74
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  • New - PTR Semi Auto Spacer With Elbow Spring - Match Grade - HKP-00838 HK Semi Auto Spacer with Elbow Spring - Match Grade
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    HK Semi Auto Spacer with Elbow Spring - Match Grade

    PTR

    $11.95
    PTR Semi Auto Spacer With Elbow Spring - Match Grade   For use on all HK semi-auto trigger packs. It's a must-have for those converting a full auto trigger pack to semi-auto. This unit provides a "match" grade feel to your trigger pull. 
    HKP-00838
    $11.95
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