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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On Sale
HK VP9 Optic Plate #5 - Burris FastFire, Vortex Viper / Venom - Red Dot Pistol Mount
H&K Heckler & Koch
Now: $29.95Was: $48.95Optics Plate #5 Burris FastFire - HK VP9, VP9L All Steel HK German OEM optics plate to mount Burris FastFire (gen 2/3) Vortex Viper and Venom, and ADE Advanced RD3-015 Compatible With: HK VP9 OR, VP9 Tactical OR HK VP9L OR HK VP9 Match OR HK VP9SK OR HK...HKP-19257Now: $29.95Was: $48.95 -
HK P30 Tactical Barrel - .40 S&W - 4.45" - Threaded 9/16x24 RH
RCM
$225.00RCM HK P30 .40 S&W Tactical Barrel - Threaded 9/16x24 RH Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest threaded replacement barrel for the HK P30 .40...HKP-16714$225.00 -
F5 MFG HK MP5 .22LR Modular Stock System
F5 MFG
$349.95Modular Stock System with MP5 .22 Adapter Features: HK MP5 22 compatible adapter 6061 AL and nylon 6/6 polymer construction Integrated locking hinge Adjustable cheekwell 7 adjustable length positions 3in length of pullHKP-20196$349.95 -
HK VP9 Ledge Straight Eight Sight Set for Suppressor - Optics Ready
Heinie
$205.95Heinie Optics Ready HK VP9 Ledge Straight Eight Sight Set for Suppressor This sight set features our rear Ledge design. The military inspired sight design combines the best features of our Classic and SlantPro with a few of its own that sets it apart...HKP-19998$205.95 -
Out Of Stock
HK USP, USP Compact .45 ACP New Style Extractor
H&K Heckler & Koch
$59.95New Style Extractor New HK German part with red loaded chamber indicator. Compatible with: USP 45, USP 45 Tactical USP Compact .45, USPC .45 Tactical USP ExpertHKP-01478$59.95 -
HK USP Mag Pouch - Twin - .45 ACP
Comp-Tac
$60.95Comp-Tac HK USP .45 ACP Twin Mag Pouch The Comp-Tac Twin Magazine Belt pouch is an outside the waistband holder that carries two magazines attached together. Designed to be worn at 9:00 for a right handed shooter this is an excellent way to carry more...HKP-17495$60.95 -
HK VP9/P30 Compact Holster - Paddle
Safariland
$47.95Safariland HK VP9/P30 Compact Paddle Holster The Safariland 578 GLS HK Pro-fit holster is a multi-purpose holster primarily designed for concealment & comfort. With minor adjustments with the included tool the holster will fit over 100+ handgun...HKP-17549-M$47.95 -
On Sale
Glock 23 13-Round .40 S&W Magazine
Glock
Now: $19.95Was: $29.95Glock 23 .40 S&W - 13 Round Magazine These are factory-original, drop-free magazines for your Glock handgun. Glock magazines have a hardened steel insert encased in high-tech polymer. This polymer coating protects the magazine and prevents...HKP-00014Now: $19.95Was: $29.95 -
HK416, MR556, MR762 Selector Lever Axle- Semi Auto
H&K Heckler & Koch
$44.95H&K HK MR556/MR762/416 Semi Auto Axle For Selector Lever HK German safe, semi selector axle for the MR 556 & HK 416 family of firearms. All steel construction. Compatible With: HK MR556 HK 416 HK MR762HKP-15433$44.95 -
HK416, MR556, HK417, MR762 Bridge
H&K Heckler & Koch
$24.95Heckler and Koch HK416, HK MR556, HK417, and MR762 Bridge For Lowers Compatible With: HK416, MR556 HK417, MR762HKP-02676$24.95 -
HK UMP, USC Bolt Carrier - Semi Auto - .45 ACP - Complete
USA
$399.95USA HK UMP/USC .45 Semi Auto Bolt Carrier - Complete Replacement part for USC to UMP conversions. Marked .45 semi auto just like the OEM carrier. Includes: Extractor Firing Pin Firing Pin Spring Firing Pin Retaining Pin Compatible With: HK UMP ...HKP-18588$399.95 -
$19.95