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
-
Thread Protector - 9mm - 13.5x1 - LH
H&K Heckler & Koch
$39.95H&K 9mm Thread Protector - Threaded 13.5x1 LH This German HK manufactured 9mm tactical threaded barrel protector fits all HK 9mm threaded barrels that are 13.5x1 metric LH twist. Specifications: Overall Length .45" Outside Diameter ...HKP-00919$39.95 -
HK MP5K Trigger Housing - SEF Navy Style - Push Pin - 9mm - USED
H&K Heckler & Koch
$74.95H&K MP5K 9mm SEF Navy Style Trigger Housing - Push Pin - USED HK German factory date coded SEF grip frame that has been cut to MP5K factory German specs. This style of housing is for push pin firearms that do not require a clipped and pinned housing...HKP-19997-USED$74.95 -
HK MP5, SP5, HK94 Handguard - 9mm - Lightweight
B&T Brugger & Thomet
$259.95B&T Brugger & Thomet HK MP5, SP5, HK94 Handguard - 9mm - Lightweight - Tri-Rail B&T's Lightweight Tri-Rail Handguard is almost 25% lighter with practically identical construction. The handguard offers a total of three NAR/Picatinny rails. One...HKP-19737$259.95 -
HK90 Series Roller for Bolt Head 8.00mm - Standard
H&K Heckler & Koch
$27.95H&K Roller For Bolt Head 8.00mm - Standard The 8mm roller is the proper roller size for the standard "zero" function. The correct 8mm roller is essential for proper head spacing and bolt gap. New HK German, not surplus or used goods, that are worn...HKP-00506$27.95 -
Out Of Stock
HK91, G3 Rear Push Pin Reinforcement Weldment
PTR
$29.95HK91, G3, PTR, CETME Push Pin Reinforcement Weldment HK91/G3/PTR91 or CETME steel receiver flat weldment that is added to the rear of the receiver where the 2 large stock push pins install to reinforce this section of the receiver against damage or use...HKP-18224$29.95 -
Out Of Stock
HK Sling Pin - Large - Quick Detach Attachment
HKP HK Parts
$37.95HKP Quick Detach Sling Attachment Sling Pin - Large The large stock push pin is used to retain the stock to the receiver on the 90 series of firearms. The QD sling pin is a great replacement item as it will allow the user to simply swap the push pin for...HKP-18070$37.95 -
HK USP, Mark 23 Magazine, Complete - .45 ACP - 17 Round
HKP HK Parts / Heckler & Koch
$119.95HK Parts and Heckler and Koch complete .45 ACP 17-round Magazine for HK Mark 23 and HK USP Each mag comes fully assembled and ready for use. HK Parts takes an existing German HK 12 round magazine coupled with the +5 magazine extension and assembles...HKP-19465-M$119.95 -
HK45, USP LEM Conversion Kit - Complete
H&K Heckler & Koch
$138.95H&K Heckler & Koch HK45, USP, USPC Kit - LEM - Complete - Universal HK German "universal" LEM conversion kit for USP, USPC & HK45, and HK45C pistols. This kit converts your V1-V10 HK Pistol to the LEM configuration. Each LEM kit includes all...HKP-00316$138.95 -
HK MP5, HK94 Recoil Spring
H&K Heckler & Koch
$12.95HK German MP5, HK94 Recoil Rod Assembly Spring Great replacement and spare recoil spring as this is a common repair and replacement item. Compatible With: HK MP5 HK94 Zenith, POF, AA Clones & custom buildsHKP-01652$12.95 -
HK MP5K, SP5K Handguard - M-LOK
MI Midwest Industries
$114.95M-LOK Handgaurd for MP5K, SP5K, SP89 Firearms Features: Made in the USA, 922r Compliant Professional grade one-piece design Simple installation, includes all tools Mil-spec top rail Extremely lightweight design weighs only 2.6 oz with hardware Slim 1.6...HKP-18438$114.95 -
On Sale
HK MP5 Magazine Clamp - .22LR
GSG German Sports Guns
Now: $14.95Was: $29.95GSG German Sports Guns Magazine Clamp for HK MP5 .22LR Each HK-style mag clamp is made of steel and is the highest quality aftermarket magazine clamp ever made. Holds two magazines together for tactical use and faster mag changes. Available...HKP-00791Now: $14.95Was: $29.95 -
HK91, G3, PTR Magazine - 20 Round - Steel - Surplus
H&K Heckler & Koch
$19.95H&K 91/G3/MSG90 (7.62x51/.308) 20 Round Magazine - Steel - Surplus: HK German 20 Round Steel Magazine Used - Surplus Condition Used German manufacture all steel magazine. They range from Fair to VG shape. Each magazine is a bargain for what you get...HKP-17696$19.95