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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Out Of Stock
HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Straight
H&K Heckler & Koch
$237.95German H&K MP5 9mm 30 Round Straight Magazine Original German HK magazines ranging from VG to like new condition. Date coded with factory HK markings. These rare magazines were discontinued by HK long ago. Get yours before...HKP-16263$237.95 -
HK CC9 Complete Magazine - Extended Pinky Rest - 9mm - 10 Round
HKP HK Parts
$82.95HKP CC9 10 Round 9mm Complete Magazine w/ Extended Pinky Rest This magazine starts with a factory German 10-round CC9 mag, expertly enhanced by the HK Parts extended pinky rest floor plate featuring a built-in pinky rest. The result is a fully assembled,...HKP-22277-M$82.95 -
HK USP .45 ACP MOD 1 Compensator
HKP HK Parts
$179.95HK Parts MOD 1 Compensator: H&K USP .45 ACP The HK Parts MOD 1 compensator perfectly blends form and function, setting a new standard in muzzle control. Experience a significant reduction in muzzle flip and recoil, allowing you to get back on target...HKP-22079$179.95 -
HK CC9 Rear Sight - Tritium
H&K Heckler & Koch
$41.95Heckler and Koch Rear Tritium Sight for HK CC9 Genuine HK rear tritium night sight for CC9 pistols. Provides improved visibility in low-light conditions. Compatible With: CC9HKP-21956$41.95 -
RMR Hexion Tech Seeker Red Dot Sight
Strike Industries
$99.95Strike Industries RMR Hexion Tech Seeker Red Dot Sight The Seeker RDS is a compact and modular open reflex sight for pistols. What makes this optic modular are three optional shrouds that can be purchased separately. There are three sizes of shrouds a...HKP-21901$99.95 -
HK90 Series S1 Curved Trigger - Skeletonized
HKP HK Parts
$68.95HKP 90 Series S1 Curved Trigger - Skeletonized - USA The HK Parts Skeletonized S1 curved 90 series trigger is expertly engineered for exceptional performance and reliability. It fits all 0, 1, SEF, and Navy style trigger packs effortlessly. Due to its...HKP-22180-M$68.95 -
Out Of Stock
B&T APC9, APC10, APC45 Telescopic Stock Buttpad
B&T Brugger & Thomet
$165.00B&T APC9, APC10, APC45 Telescopic Stock Buttpad B&T telescopic stock replacement buttpad. Can also be used to convert a B&T telescopic brace to a stock. Compatible With: B&T APC9, APC10, APC45 B&T APC223,...HKP-19968$165.00 -
HK MP5K, SP89, SP5K Mounting Arm, Tailhook Mod 1
Gear Head Works
$204.95Gear Head Works HK MP5K, HK SP5K Tailhook Mounting Arm Want the look of the original MP5k-PDW but without the stamp. Now you can have not only the look, but the same quality and operation in a pistol brace as the real stock. We teamed up with the...HKP-19135$204.95 -
HK G3, HK417 Muzzle Brake - SOCOM - Threaded 5/8x24
Surefire
$164.95SureFire SOCOM (7.62x51/.308) Muzzle Brake - Threaded 5/8x24 The SureFire muzzle brake is designed for Armalite AR-10, DPMS LR308, and other 7.62 mm rifles with 5/8x24 muzzle threads. It greatly reduces recoil impulse and muzzle rise, featuring neutral...HKP-19789$164.95 -
HK USPC Tactical Barrel - .40 S&W - 4.28" - Threaded 9/16x24 RH
RCM
$225.00RCM HK USPC .40 S&W Tactical Barrel - Threaded 9/16x24 RH Each USPC .40 S&W tactical barrel is meticulously crafted from ordnance grade steel, heat-treated, and finished with a durable nitride coating. This is the finest threaded replacement...HKP-16707$225.00 -
HK Mark 23 Tactical Barrel - .45 ACP - 6.02" - Threaded .578x28 RH
RCM
$289.95RCM HK Mark 23 .45 ACP Tactical Barrel - Threaded .578x28 RH This HK Mark 23 tactical threaded barrel designed for compatibility with various flash hiders and sound suppressors. Unlike the factory HK Mark 23 barrel with 16x1 RH threads, this barrel...HKP-17444$289.95 -
HK416, MR556, MR762 Fire Control Detent Stop Pin
H&K Heckler & Koch
$20.95H&K HK MR556/MR762/416 Fire Control Detent Stop Pin HK German manufacture. Compatible With: HK MR556 HK416 HK MR762HKP-15272$20.95