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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HK MP5 Stock or Brace Adapter - A2 - .22LR
HKP HK Parts
$124.95HK MP5 .22LR A2 Stock Adapter The MP5 .22LR adapter provides a solid mounting interface to add an HK91/G3 A2 stock section. Features: Ambidextrous QD sling attachment points Easy installation with included hardware CNC machined from aircraft-grade...HKP-22326$124.95 -
HK91, G3 Metal Trigger Housing Conversion Kit - AC Unity Grip
HKP HK Parts
$189.95HK91, G3 Metal Trigger Housing Conversion Kit - AC Unity Grip This kit includes everything you need to convert a polymer HK91 or G3 trigger group a robust metal housing. Simply use your existing semi-auto SEF trigger pack to complete the conversion. This...HKP-22322$189.95 -
HK Rifle Buttpad for Wooden Stocks - Used
HKP HK Parts
$16.95H&K Buttpad for Wooden Stocks - Enhanced Polymer Buttpad - Used Used and in varying condition. See photos for examples. The enhanced polymer buttpad is a direct replacement for the standard fixed stock buttpad and can be swapped out in seconds. No...HKP-22211$16.95 -
On Sale
HK G36K Lighted Handguard - Used - Rare
Surefire
Now: $589.95Was: $1,349.95Surefire HK G36K Handguard - Used - Rare SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. This authentic Surefire handguard for the HK G36K is a rare find with only a few units available. A great collector’s...HKP-22210Now: $589.95Was: $1,349.95 -
HK416 A5 Front Sight Adapter
H&K Heckler & Koch
$97.95H&K HK416 A5 Front Sight Adapter Designed for secure and precise installation of factory-style front sights. Compatible With: HK 416HKP-22204$97.95 -
HK USPC Tactical 9mm MOD 1 Compensator - Threaded
HKP HK Parts
$179.95HKP HK USPC Tactical 9mm MOD 1 Compensator - Threaded The HK Parts MOD 1 compensator perfectly blends form and function, setting a new standard in muzzle control. Experience a significant reduction in muzzle flip and recoil, allowing you to get back on...HKP-22185$179.95 -
P90 LV Parts Kit - Laser Visible - 50 Round
FN
$3,899.95FN P90 LV Kit - Laser Visible - 50 Round - USED Extremely rare factory FN P90 LV (Laser Visible) parts kit with integrated laser sight manufactured by Laserex Technologies in Australia. This compact laser system has a flat panel integrated into...HKP-22155$3,899.95 -
HK CC9 Trigger Complete
H&K Heckler & Koch
$55.95H&K CC9 Trigger Complete Genuine H&K complete trigger assembly for the CC9 pistol. Compatible With: HK CC9HKP-22126$55.95 -
HK CC9 Ejector Roll Pin
H&K Heckler & Koch
$5.95H&K CC9 Ejector Roll Pin The ejector roll pin was made in Germany for the CC9 pistol, secures the ejector in place for proper ejection function. Compatible With: HK CC9HKP-22125$5.95 -
HK CC9 Disconnector Pin
H&K Heckler & Koch
$5.95H&K CC9 Disconnector Pin This H&K CC9 disconnector pin secures the disconnector within the fire control assembly for proper timing and function. Compatible With: HK CC9HKP-22118$5.95 -
On Sale
HK MP5, HK33, HK53, HK93 Grip Housing - Push Pin Style - 4 Position - USED
H&K Heckler & Koch
Now: $129.95Was: $229.95HK MP5, HK33, HK53, HK93 Grip Housing - Push Pin Style - 4 Position - USED VARYING CONDITION SHOWN - SOLD INDIVIDUALLY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE...HKP-02240-USEDNow: $129.95Was: $229.95 -
HK MR762 A4 Buffer Tube
H&K Heckler & Koch
$95.95H&K MR762 A4 Buffer Tube Factory German-made buffer tube for the MR762 A4. Compatible With: HK MR762 A1/A4HKP-21964$95.95