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 - H&K HK MR556/416 H-Key Complete Short Handguard - FDE - HKP-18696 HK416, MR556 H-Key Complete Short Handguard - FDE

    HK416, MR556 H-Key Complete Short Handguard - FDE

    H&K Heckler & Koch

    $0.00
    H&K HK MR556/416 H-Key Complete Short Handguard - FDE Slim line handguard with H-Key mounting slots, short. Compatible With: All 11", 14.5", 16.5", & 20" models HK MR556 HK 416/416 A5
    HKP-18696
    $0.00
    Out Of Stock
    Qty in Cart: 0
    Quantity:
    Price:
    $0.00
    Subtotal:
    Out Of Stock
  • Out Of Stock
    New - H&K HK MR556/416 H-Key Complete Short Handguard - Black - HKP-18611 HK416, MR556 H-Key Complete Short Handguard

    HK416, MR556 H-Key Complete Short Handguard

    H&K Heckler & Koch

    $0.00
    H&K HK MR556/416 H-Key Complete Short Handguard Slim line handguard with H-Key mounting slots, short. Compatible With: All 11", 14.5", 16.5", & 20" models HK MR556 HK 416/416 A5
    HKP-18611
    $0.00
    Out Of Stock
    Qty in Cart: 0
    Quantity:
    Price:
    $0.00
    Subtotal:
    Out Of Stock
  • Out Of Stock
    New - HKP HK MR556/416 Upper 9" 416C Style Conversion Kit - HKP-18674 HK416, MR556 Upper Conversion Kit - 9" - HK416C Style

    HK416, MR556 Upper Conversion Kit - 9" - HK416C Style

    HKP HK Parts

    $899.95
    MR556 and HK416 Upper Conversion Kit - 9" - HK 416C Style Finally an answer for all of those that have been wanting as close to the original, rare unicorn of a find HK 416C 9" barrel conversion kit for 416 or MR556. Each conversion kit upper or barrel...
    HKP-18674
    $899.95
    Out Of Stock
    Qty in Cart: 0
    Quantity:
    Price:
    $899.95
    Subtotal:
    Out Of Stock
  • New - H&K HK MR556/MR762 Buttstock Release Lever - HKP-16621 HK MR556, MR762 Buttstock Release Lever
    Add to Cart

    HK MR556, MR762 Buttstock Release Lever

    H&K Heckler & Koch

    $9.95
    H&K HK MR556/MR762 Buttstock Release Lever Compatible With: HK MR556 HK MR762
    HKP-16621
    $9.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $9.95
    Subtotal:
    Add to Cart
  • Out Of Stock
    New - HKP HK MR556/416 9" HK416C Style Barrel Conversion Kit - HKP-18401 HK416, MR556 Barrel Conversion Kit - 9" - HK416C Style

    HK416, MR556 Barrel Conversion Kit - 9" - HK416C Style

    HKP HK Parts

    $0.00
    MR556 & HK416 Barrel Conversion Kit - 9" - HK 416C Style Finally an answer for all of those that have been wanting as close to the original, rare unicorn of a find HK 416C 9" barrel conversion kit for 416 or MR556. Each conversion kit upper or barrel...
    HKP-18401
    $0.00
    Out Of Stock
    Qty in Cart: 0
    Quantity:
    Price:
    $0.00
    Subtotal:
    Out Of Stock
  • Out Of Stock
    New - H&K HK MR556/MR762/416 Buffer Staking Tool - HKP-16945

    HK416, MR556, MR762 Buffer Staking Tool

    H&K Heckler & Koch

    $0.00
    HK 416, MR556 & MR762, HK 417 - Buffer Staking Tool - German HK Rare HK factory HK staking tool for the castle nut to be staked. These took over 3 years to get and offered for cost while supplies last! Each tool is the factory correct tool used for...
    HKP-16945
    $0.00
    Out Of Stock
    Qty in Cart: 0
    Quantity:
    Price:
    $0.00
    Subtotal:
    Out Of Stock
  • Out Of Stock
    New - H&K HK 416 Incomplete Bolt Head - HKP-00046 HK416 Bolt Head, Incomplete

    HK416 Bolt Head, Incomplete

    H&K Heckler & Koch

    $0.00
    Heckler and Koch Incomplete Bolt Head for HK416 New HK German HK416 Bolt Head Complete- Incomplete
    HKP-00046
    $0.00
    Out Of Stock
    Qty in Cart: 0
    Quantity:
    Price:
    $0.00
    Subtotal:
    Out Of Stock
  • Out Of Stock
    New - H&K HK 416 Complete Bolt Head - HKP-00044 HK416 Bolt Head, Complete

    HK416 Bolt Head, Complete

    H&K Heckler & Koch

    $0.00
    HK German Heckler and Koch's Bolt Head Complete for your HK416 New HK German manufacture for the HK416 models. Date coded, proof marked and current HK production.
    HKP-00044
    $0.00
    Out Of Stock
    Qty in Cart: 0
    Quantity:
    Price:
    $0.00
    Subtotal:
    Out Of Stock
  • Out Of Stock
    New - H&K HK 416 Complete Bolt Group - HKP-00043 HK416 Bolt Group, Complete

    HK416 Bolt Group, Complete

    H&K Heckler & Koch

    $0.00
    Heckler and Koch's Bolt Group Complete - German for HK416  New HK German HK416 Bolt group. Rare component as the HK bolt groups are now considered EUC items and are not for sale from HK Germany.  Each unit is factory fresh with all of the OTB...
    HKP-00043
    $0.00
    Out Of Stock
    Qty in Cart: 0
    Quantity:
    Price:
    $0.00
    Subtotal:
    Out Of Stock
  • Out Of Stock
    New - H&K 30 Round HK MR556/416 Magazine - Black - HKP-15805 HK416, MR556 Magazine - 30 Round

    HK416, MR556 Magazine - 30 Round

    H&K Heckler & Koch

    $0.00
    Heckler and Koch 30 round 5.56 mm Polymer Magazine for HK416, HK MR556A1, and AR15 Fits HK MR556A1, HK416, AR15 and all high quality AR/M4/M16 type firearms. Heckler & Koch reliability and durability in a 30 round 5.56 mm Polymer Magazine at a...
    HKP-15805
    $0.00
    Out Of Stock
    Qty in Cart: 0
    Quantity:
    Price:
    $0.00
    Subtotal:
    Out Of Stock
  • Out Of Stock
    New - H&K HK G36 Complete 1.5X Single Optic Carrying Handle - HKP-16742 HK G36 Carrying Handle, Incomplete - 1.5X Single Optic

    HK G36 Carrying Handle, Incomplete - 1.5X Single Optic

    H&K Heckler & Koch

    $0.00
    H&K HK G36 Complete 1.5X Single Optic Carrying Handle The 1.5X single optics are quite rare. Mounting hardware sold separately.
    HKP-16742
    $0.00
    Out Of Stock
    Qty in Cart: 0
    Quantity:
    Price:
    $0.00
    Subtotal:
    Out Of Stock
  • Out Of Stock
    New - H&K HK G36C Handguard - Black - HKP-18546 HK G36C Handguard

    HK G36C Handguard

    H&K Heckler & Koch

    $0.00
    G36C Slim line handguard with Hkey mounting slots HK German G36C forearm with HKey mounting slots. Made in Germany.
    HKP-18546
    $0.00
    Out Of Stock
    Qty in Cart: 0
    Quantity:
    Price:
    $0.00
    Subtotal:
    Out Of Stock
  • Total: items /

Adding your products to cart

View Cart Continue Shopping