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 Pistol Parts Kit - 9mm - Receiver Flat and Weldment Set
H&K Heckler & Koch
$1,689.95H&K MP5 9mm Pistol Build Kit With Flat & Weldment Set Each MP5 9mm parts kit started life as an iconic German manufactured MP5 that was issued to the border guard and military police for service...HKP-16606$1,689.95 -
Out Of Stock
Ergo KeyMod Handstop
Ergo
$51.95KeyMod Hand Stop/Barricade Stop in Black Aggressive textured front for enhanced traction on barricades and obstacles Features: Low profile base also functions as a comfortable hand stopHKP-17885$51.95 -
HK MP5, HK94 Selector Lever - Burst Ambi 3 position - Right Side ONLY - BURST ONLY
H&K Heckler & Koch
$99.47H&K 3 Position Ambidextrous Selector Lever - BURST ONLY This selector lever will convert any 4 position 0, 1, 2, F or 0, 1, 3, F trigger group to non-full auto BURST capability only, making the...HKP-01294$99.47 -
On Sale
HK416, MR556 Vertical Grip - AR-Style
Other
Now: $8.95Was: $19.95Turkish AR-Style Grip for HK416, MR556 Turkish-made AR-style grip for HK416 and MR556 rifles. The full-size profile and steeper grip angle provide a more natural hand position on compact rifles and...HKP-22881Now: $8.95Was: $19.95 -
On Sale
HK VP9 OR Optic Mount - RMR
XS Sights
Now: $65.66Was: $72.95XS Sights RMR Optic Mount for HK VP9 Optics Ready Pistols XS Sights RMR optic mount for HK VP9 optics-ready pistols. Machined from steel and finished in BlackNitride, this plate is built to provide a...HKP-22676Now: $65.66Was: $72.95 -
HK MP5 A3 Retractable Buttstock Lever Rebuild Kit
H&K Heckler & Koch
$49.95Heckler and Koch Lever Rebuild Kit for A3 Retractable Buttstocks Rebuild kit for worn out or to complete A3 retractable stocks with metal back plate Compatible with: MP5HKP-22547$49.95 -
On Sale
HK91, G3 A2 Stock - Tan - Saudi Contract - Rare
Other
Now: $223.96Was: $279.95VARYING CONDITION SHOWN - SOLD INDIVIDUALLY Original Saudi Arabian contract G3 A2 fixed stock in tan. Don't miss your chance to get a rare contract G3 stock assembly in this condition. Compatible...HKP-99424Now: $223.96Was: $279.95 -
On Sale
HK USP StippleTape Grip Wrap - 9mm / .40 S&W
Volker Precision
Now: $18.00Was: $19.99HK USP StippleTape Grip Wrap - 9mm / .40 S&W - Volker Precision StippleTape textured rubber grips for HK USP. The wrap fits neatly withing the existing texture recess on both sides of the grip. Made...HKP-22502Now: $18.00Was: $19.99 -
On Sale
HK MP5K, AP5-P End Cap - Incomplete - BLEMISHED
MKE
Now: $14.96Was: $27.95MKE MP5K, AP5-P Incomplete End Cap - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. MKE...HKP-99397Now: $14.96Was: $27.95 -
HK G36C Parts Kit with Rear Hinge Section - RARE
H&K Heckler & Koch
$5,495.95Heckler and Koch De-milled G36C Parts Kit with Rear Hinge Section - RARE Rare, original HK G36C de-milled parts kit with rear hinge receiver section. A true centerpiece for serious HK collectors and...HKP-22486-M$5,495.95 -
HK MP5 Case Deflector - 9mm, .40 S&W Receivers
HKP HK Parts
$24.95HKP HK MP5 Case Deflector - 9mm, .40 Receivers US-made steel case deflector for HK MP5 and MP5K receivers in 9mm and .40 S&W. Installs on the ejection-port flat, rivet or weld, to redirect brass and...HKP-22383$24.95 -
On Sale
HK UMP 3 Position Lower Grip Frame - Black - RARE - USED
HKP HK Parts
Now: $337.46Was: $699.95HK UMP 3 Position Lower Grip Frame - Black - RARE - USED ONLY 1 UNIT AVAILABLE - AS PICTURED COSHKP-99274Now: $337.46Was: $699.95