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
  • Out Of Stock
    New - HKP HK USPC/45C Titanium Firing Pin - HKP-17801
    Quick view

    HK45C, USPC Firing Pin - Titanium

    HKP HK Parts

    $49.95
    HKP HK USPC/45C Titanium Firing Pin A solid billet CNC offering at 40+% lighter than comparable steel firing pins. Our titanium firing pins travel faster in the slide, delivering a quicker lock time...
    HKP-17801
    $49.95
    Out Of Stock Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $49.95
    Subtotal:
    Out Of Stock
  • New - H&K HK USP/Tactical .45 ACP Lockout Device Set - HKP-01503
    Add to Cart
    Quick view

    HK USP, USP Tactical .45 ACP Lockout Device Set

    H&K Heckler & Koch

    $18.95
    Heckler and Koch HK USP45, USP45 Tactical Lockout Device Set   Factory lockout device set designed for HK USP .45 ACP full-size pistols, including Tactical models. Intended for use in compatible...
    HKP-01503
    $18.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $18.95
    Subtotal:
    Add to Cart
  • Out Of Stock
    New - Heckler and Koch HK USP V5/6/7 Complete Bobbed Hammer - HKP-01934
    Quick view

    HK USP V5, V6, V7 Complete Bobbed Hammer

    H&K Heckler & Koch

    $0.00
    Heckler and Koch HK USP V5/6/7 Complete Bobbed Hammer   Compatible With: HK USP 9mm HK
    HKP-01934
    $0.00
    Out Of Stock Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $0.00
    Subtotal:
    Out Of Stock
  • Out Of Stock
    New - H&K HK USPC Original Style Firing Pin - HKP-01286
    Quick view

    HK USP Compact Firing Pin - Original Style

    H&K Heckler & Koch

    $59.95
    HK USP Compact Firing Pin - Original Style Compatible With: HK USP Compact 9mm HK USP Compact 40 S&W HK USP Compact 357 SIG
    HKP-01286
    $59.95
    Out Of Stock Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $59.95
    Subtotal:
    Out Of Stock
  • On Sale
    New - Hi-Viz HK USP Fiber Optic Rear Sight - Green - HKP-16940
    Add to Cart
    Quick view

    HK USP Fiber Optic Rear Sight - Green

    Hi-Viz

    Now: $35.03
    Was: $54.95
    Hi-Viz HK USP Fiber Optic Rear Sight - Green Fiber optic sights are becoming more and more popular as they never dim or become aged. Priced right and a great option for thos
    HKP-16940
    Now: $35.03
    Was: $54.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $35.03
    Was: $54.95
    Subtotal:
    Add to Cart
  • Out Of Stock
    New - H&K HK USP Series Old Style Catch - HKP-01176
    Quick view

    HK USP Series Old Style Catch

    H&K Heckler & Koch

    $29.95
    H&K HK USP Series Old Style Catch Compatible With: HK USP 9mm HK USP 40 HK USP 45
    HKP-01176
    $29.95
    Out Of Stock Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $29.95
    Subtotal:
    Out Of Stock
  • New - H&K HK G36 Picatinny Rail - Black - HKP-18725 HK G36 Picatinny Rail - Lateral
    Add to Cart
    Quick view

    HK G36 Picatinny Rail - Lateral

    H&K Heckler & Koch

    $195.99
    H&K HK G36 Picatinny Rail HK Lateral Picatinny Rail - Ambidextrous for Sight Rails. Compatible With: G36
    HKP-18725
    $195.99
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $195.99
    Subtotal:
    Add to Cart
  • Out Of Stock
    New - HKP HK UMP .45 ACP Barrel - Threaded 16x1 LH - 3-Lug - HKP-18511 HK UMP Barrel - .45 ACP - 8" - Threaded 16x1 LH with 3 Lug - US
    Quick view

    HK UMP Barrel - .45 ACP - 8" - Threaded 16x1 LH with 3 Lug - US

    HKP HK Parts

    $399.95
    HKP H&K UMP .45 ACP Barrel - Threaded 16x1 LH - 3-Lug New USA made .45 ACP 8" barrel for the UMP or Omega firearms. Each barrel is threaded 16x1 RH and 3-Lug tipped. The finest barrel for the UMP .45...
    HKP-18511
    $399.95
    Out Of Stock Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $399.95
    Subtotal:
    Out Of Stock
  • Used - H&K USC (.45 ACP) Incomplete Trigger Housing - Used - HKP-16479 HK USC (.45 ACP) Incomplete Trigger Housing - Used
    Add to Cart
    Quick view

    HK USC (.45 ACP) Incomplete Trigger Housing - Used

    H&K Heckler & Koch

    $73.95
    H&K USC (.45 ACP) Incomplete Trigger Housing - Used Used HK German USC Lower Receiver Empty. German HK, perfect for spare parts.
    HKP-16479
    $73.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $73.95
    Subtotal:
    Add to Cart
  • Total: items /

Adding your products to cart

View Cart Continue Shopping