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 MP5, SP5K Thread Protector - 9mm - 1/2x32 RH
H&K Heckler & Koch
Now: $32.95Was: $39.95H&K 9mm Thread Protector - Threaded 1/2x32 RH A great replacement item for lost or damaged thread protectors & caps. This part is compatible with all factory-spec MP5 Navy or MP5KN barrels. Specifications: Overall Length .610" Threaded 1/2x32...HKP-00108Now: $32.95Was: $39.95 -
HK MP5, MP5K Optic Mount - Raised - Aimpoint ACRO, T1, T2 - Picatinny
MI Midwest Industries
$104.95Midwest Industries HK MP5, MP5K Tall Optic Mount Tall, clamp-on optic mount for HK MP5 and MP5K pattern firearms, giving a higher, more upright sightline while still allowing use of the factory diopter sights. Ideal for mounting micro red dots with a...HKP-22396-M$104.95 -
HK VP9 Micro Comp - Vertical Slot - Threaded 1/2x28 - Right Hand
HKP HK Parts
$29.95HKP 9mm Vertical Slot Micro Comp - Threaded 1/2x28 RH The HK Parts micro comp & thread protector strikes a balance between a lightweight, minimalistic design and range functionality. The micro comp easily threads on to the end of any factory spec...HKP-21814$29.95 -
HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - LEO Marked
H&K Heckler & Koch
$159.95H&K HK MP5/MP5K 30 Round - LEO Marked Magazine - TiN/CRN Coated Elevate your collection with our TiN coated factory Heckler & Koch magazines. Each magazine begins as a new German 30-round 9mm mag that is expertly disassembled, TiN coated,...HKP-21792-M$159.95 -
HK SP5K Spec Only 9mm SEF Navy Style Housing - Clipped and Pinned - USED
H&K Heckler & Koch
$149.95H&K SP5K Spec Only 9mm SEF Navy Style Housing - Clipped & Pinned - USED Hand-selected for the highest quality, these "like new" H&K SP5K SEF style trigger housings have been meticulously clipped and pinned to fit the correct SP5K style shelf...HKP-20064$149.95 -
ASR AC233 Flash Hider - .30 CAL - Threaded 15x1
SilencerCo
$92.95SilencerCo ASR .30 Cal AC233 Flash Hider - Threaded 15x1 The SilencerCo ASR .30 Cal AC233 Flash Hider is designed for use with ASR (Active Spring Retention) mounts, providing a quick attach/detach system compatible with nearly all SilencerCo suppressors...HKP-19507$92.95 -
HK VP9, VP9SK, VP40 Firing Pin with Striker
H&K Heckler & Koch
$59.95H&K VP9/VP9SK, HK VP40 Firing Pin w/ Striker New HK German factory firing pin that fits all models of VP series pistols. Compatible With: HK VP9, VP9 Tactical, VP9L, VP9 OR HK VP9SK VP40, VP40 TacticalHKP-16833$59.95 -
HK Mark 23 Extractor
H&K Heckler & Koch
$79.95HK German Mark 23 SOCVOM Extractor New HK German manufacture. This item is no longer being made and is a great spare part to have on hand. Compatible With: Mark 23 SOCOM pistolsHKP-01408$79.95 -
Out Of Stock
HK P2000,P2000SK HD Night Sight Set - Orange
Trijicon
$154.99Trijicon HK P2000/P2000SK HD Night Sight Set - Orange The HD Night Sights were specifically created to address the needs of tactical shooters. The three-dot green tritium night sight set front sight features a taller blade and an aiming point...HKP-14963$154.99 -
HK USP45 Recoil Assembly, Complete
H&K Heckler & Koch
$99.95Heckler and Koch .45 ACP Complete Recoil Assembly for HK USP New HK German manufacture. Compatible With: USP Full Size Pistol USP Expert USP EliteHKP-01161$99.95 -
HK USP Tactical Magazine - 9mm - 31 Round
H&K Heckler & Koch
$149.00H&K 31 Round HK USP 9mm Tactical Magazine HK German manufactured for the USP 9mm full-size pistol. Holds 31 rounds of 9mm ammunition. Compatible With: HK USP 9mm full-size Variants HK USP .40 (reduced capacity vs 9mm) Will NOT work in...HKP-00302-M$149.00 -
HK33, HK53, HK93 Magazine Spring - 30 Round
H&K Heckler & Koch
$8.45HK 93,33, & 53 Magazine Replacement Spring For Steel German HK 30-Round Magazines This is a hard-to-find and must-have spare part for your HK high-capacity mags. Please Note: Although not factory correct, these springs will work in the 25-round HK 93...HKP-14411$8.45