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 Surefire Lighted Handguard - 328LMF
Surefire
$649.95Surefire - 328LMF - Lighted Handguard The SureFire 328LMF-B replaces the original handguard of your HK MP5, HK53, or HK94. Compact 3-volt (1-battery) system features a virtually indestructible LED...HKP-17632$649.95 -
HK MP7 Piston Ring
H&K Heckler & Koch
$9.95HK German MP7A1 Piston Ring For Gas Piston New HK German MP7 piston ring. A high wear & tear item. Works on all HK MP7 models. Each ring is sold individually. 3X are needed for each piston. We...HKP-17426$9.95 -
Out Of Stock
HK416 E1, MR556 Charging Handle - Ambidextrous
H&K Heckler & Koch
$129.95H&K HK MR556/416 E1 Charging Handle - Ambidextrous HK's design boasts a smooth & easy to release latch with an enhanced oversized charging handle. Compatible With:HKP-01959$129.95 -
Out Of Stock
HK MP5, MP5K Magazine Release Paddle - Anti-Rattle Roller-Tip - 9mm
H&K Heckler & Koch
$64.95Heckler and Koch Anti-Rattle Roller Tipped "Paddle" Magazine Release for HK MP5, MP5K Factory German made Paddle mag release for all 9mm MP5, MP5K HK builds. Our parts are made by HK in Germany and...HKP-00117$64.95 -
HK P30L, P30LS Compensator V2 - Quick Detach
HKP HK Parts
$149.95HKP Quick Detach Compensator V2 for HK P30L and HK P30LS 9mm and .40 S&W Easy on, easy off - Quick Detach technology. The HK Parts P30L Comp Weight™ is the world's first quick detach Comp Weight™,...HKP-18083$149.95 -
HK91, G3, PTR Magazine - 20 Round - Steel - Like New
Rheinmetall
$28.95Rheinmetall HK G3, HK91, and PTR91 20 Round Steel Magazine - Like New Steel magazine for HK91, G3, and PTR91 pattern rifles with a 20-round capacity. Originally made for the German army and offered...HKP-22563$28.95 -
HK45 Straight Trigger
Grayguns
$94.95Grayguns HK45 Straight Trigger The Grayguns HK45 straight trigger is a first-of-its-kind in the market. The trigger reduces over-travel while featuring a 90 degree optimal trigger break. Crafted in...HKP-21496$94.95 -
HK VP9 Magwell - EDC - Steel
HKP HK Parts
$79.95HKP HK VP9 Steel EDC Tactical Magwell Our newest and greatest EDC magwell was redesigned for a much faster and reliable mag reloads. With a much greater funneled area it guides you to the correct...HKP-21410$79.95 -
On Sale
Sig Sauer Compensator - P365-XMACRO
HKP HK Parts
Now: $74.96Was: $179.95HKP SIG P365-XMACRO Compensator Our SIG P365-XMACRO compensator reduces recoil and muzzle flip. Each unit is 100% US made and finished in durable black cerakote. Our XMACRO compensator features a...HKP-21259Now: $74.96Was: $179.95 -
On Sale
HK45C Rail Mount Compensator
HKP HK Parts
Now: $101.21Was: $189.95HKP HK45C .45 Rail Mount Compensator Specifications: Length: 4 inches Height: 2 1/2 inches Weight: 5 oz.HKP-20598Now: $101.21Was: $189.95 -
Out Of Stock
HK MP5, MP5K Magazine Release Set
H&K Heckler & Koch
$184.95Heckler and Koch Magazine Release Set for HK MP5 and HK MP5K This is the complete magazine release kit that includes both the paddle mag release and standard left-to-right mag release on your HK 9mm...HKP-02402$184.95 -
Out Of Stock
HK MP5SD Tri-Rail Handguard
B&T Brugger & Thomet
$375.00B&T Brugger and Thomet Tri-Rail Handguard for HK MP5SD B&T manufactured MP5SD Tri-rail. Factory HK Part number 299459. Made in Switzerland for HK & B&T. Compatible With:HKP-16884$375.00