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.

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • On Sale
    New - HKP 2 Point Leather Sling - OD Green - HKP-20164 HKP 2 Point Leather Sling - OD Green
    Add to Cart

    HKP 2 Point Leather Sling - OD Green

    HKP HK Parts

    Now: $39.95
    Was: $49.95
    HKP 2 Point Leather Sling - OD Green These new HK Parts 2-point slings are based off of the original German HK design that are no longer offered. This is a 1st time offering, handcrafted by a German artisan. Made in the USA from quality leather and...
    HKP-20164
    Now: $39.95
    Was: $49.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $39.95
    Was: $49.95
    Subtotal:
  • On Sale
    New - HKP Short Sleeve Tee - Gray - HKP-21021-M
    Choose Options

    HKP Shirt - Short Sleeve - Gray

    HKP HK Parts

    $11.95 - $12.95
    HKP Short Sleeve Shirt - Gray 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: Unisex fit Fine cotton High fidelity DTG...
    HKP-21021-M
    $11.95 - $12.95
    Choose Options
    Qty in Cart: 0
    Quantity:
    Price:
    $11.95 - $12.95
    Subtotal:
  • On Sale
    New - HKP Linear Compensator - Threaded 5/8x24 RH - (5.56 & .308) - HKP-19338 HK Linear Compensator - Threaded 5/8x24 RH - 5.56 and .308
    Add to Cart

    HK Linear Compensator - Threaded 5/8x24 RH - 5.56 and .308

    HKP HK Parts

    Now: $87.95
    Was: $149.95
    HKP (5.56/.223) and (7.62x51/.308) Linear Compensator - Threaded 5/8x24 RH Linear compensators give you the best of both worlds. Remove the outer blast shield for standard compensator and muzzle break functionality. Or, keep it on as a courtesy to the...
    HKP-19338
    Now: $87.95
    Was: $149.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $87.95
    Was: $149.95
    Subtotal:
  • On Sale
    New - Trijicon HK USP Night Sight Set - HKP-01609 HK USP Night Sight Set
    Add to Cart

    HK USP Night Sight Set

    Trijicon

    Now: $107.95
    Was: $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
    Now: $107.95
    Was: $127.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $107.95
    Was: $127.95
    Subtotal:
  • New - H&K HK USP 9mm / .40 S&W Magazine Loader - Black - HKP-01165
    Add to Cart

    HK USP 9mm, .40 S&W Magazine Loader

    H&K Heckler & Koch

    $19.95
    H&K HK USP 9mm / .40 S&W Magazine Loader - Black Factory new Heckler & Koch. Compatible With: HK USP 9mm HK USP .40 S&W HK USP .357 SIG   Please Note: This does not fit USP .45 magazines.
    HKP-01165
    $19.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $19.95
    Subtotal:
  • Out Of Stock
    New - H&K HK416, MR556 Magazine Release Button - HKP-02656 HK416, MR556 Magazine Release Button

    HK416, MR556 Magazine Release Button

    H&K Heckler & Koch

    $16.95
    Heckler and Koch Magazine Release Button for HK416 and HK MR556 New HK German Manufacture. Compatible With: HK416, MR556 AR15, M4, M16 firearms
    HKP-02656
    $16.95
    Out Of Stock
    Qty in Cart: 0
    Quantity:
    Price:
    $16.95
    Subtotal:
  • New - H&K MP5SD 9mm Locking Piece - HKP-00135 HK MP5SD Locking Piece - 115 Degree - 9mm
    Add to Cart

    HK MP5SD Locking Piece - 115 Degree - 9mm

    H&K Heckler & Koch

    $179.95
    HK German MP5SD Factory Locking Piece MP5 "action" SD locking piece is the current factory-correct locking piece for the MP5SD. For optimal results, use the action 3 or F bolt head for the most reliable feeding and extraction.  These upgrades work...
    HKP-00135
    $179.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $179.95
    Subtotal:
  • HK MP5K Apparel - Hats, Patches, and Shirts - V2 HK MP5K Apparel - Hats, Patches, and Shirts - V2
    Choose Options

    HK MP5K Apparel - Hats, Patches, and Shirts - V2

    HKP HK Parts

    $0.00
    HKP HK MP5K Apparel and Patch Collection - Version 2 Represent your platform with the HK Parts K Series apparel and accessories lineup. Built for enthusiasts who appreciate iconic firearms and clean, understated design, this collection delivers premium...
    HKP-22455-M
    $0.00
    Choose Options
    Qty in Cart: 0
    Quantity:
    Price:
    $0.00
    Subtotal:
  • On Sale
    New - RCM HK21 & HK11 Barrel - 14.5" - HKP-21631 HK21, HK11 Barrel - 7.62 / .308 - 14.5"
    Add to Cart

    HK21, HK11 Barrel - 7.62 / .308 - 14.5"

    RCM

    Now: $599.95
    Was: $684.95
    RCM HK21 and HK11 Barrel - 14.5" RCM HK11 barrels are expertly crafted from mil-spec 41V50 CHF blanks and are fully salt bath nitrided, delivering exceptional wear and corrosion resistance. These hybrid barrels feature an E cut barrel face and are...
    HKP-21631
    Now: $599.95
    Was: $684.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $599.95
    Was: $684.95
    Subtotal:
  • Used - H&K 91/G3/MSG90 (7.62x51/.308) Pouch - Used - HKP-21555 HK91, G3 Magazine Pouch - Used
    Add to Cart

    HK91, G3 Magazine Pouch - Used

    H&K Heckler & Koch

    $18.99
    H&K 91/G3/MSG90 (7.62x51/.308) Pouch - Used   Compatible With Magazines for the Following Applications: HK 91 HK G3 HK PSG-1 HK MSG-90 PTR-91 Vector 51 Century HK 308 Other custom HK91/G3 style builds and clones
    HKP-21555
    $18.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $18.99
    Subtotal:
  • On Sale
    New - HKP HK UMP/USC & G36 Flat Trigger - HKP-20766-M HK UMP, USC, G36 Flat Trigger
    Choose Options

    HK UMP, USC, G36 Flat Trigger

    HKP HK Parts

    $79.95 - $99.95
    HKP HK UMP/USC & G36 Flat Trigger Our flat trigger has spaced out serrations at the face of the trigger for a superior grip. Chamfered edges prevent the trigger face serrations from cutting into the operator's hands over prolonged range sessions...
    HKP-20766-M
    $79.95 - $99.95
    Choose Options
    Qty in Cart: 0
    Quantity:
    Price:
    $79.95 - $99.95
    Subtotal:
  • Out Of Stock
    Like New- H&K MP5, 93/53, G3 (9mm, 5.56/.223, 7.62/.308) 3 Position (S,U,O Pictogram) Contract Housing - Clipped & Pinned - USED - HKP-20031 HK MP5, HK53, HK53, G3 Contract Housing - 3 Position S,U,O Pictogram - Clipped and Pinned - 9mm, 5.56 / .223, 7.62 / .308 - Like New

    HK MP5, HK53, HK53, G3 Contract Housing - 3 Position S,U,O Pictogram - Clipped and Pinned - 9mm, 5.56 / .223, 7.62 / .308 - Like New

    Other

    $119.95
    HK MP5, HK93 HK53, G3 (9mm, 5.56/.223, 7.62/.308) 3 Position (S,U,O Pictogram) Contract Housing - Clipped & Pinned - Like New Upgrade your HK93 or HK53 with this S,U,O polymer lower housing, a Malaysian contract housing designed for SEF type trigger...
    HKP-20031
    $119.95
    Out Of Stock
    Qty in Cart: 0
    Quantity:
    Price:
    $119.95
    Subtotal:
  • Total: items /

Adding your products to cart