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 CC9 Magazine Catch Spring
H&K Heckler & Koch
$5.95H&K CC9 Magazine Catch Spring This authentic CC9 magazine catch spring applies tension to the magazine catch for secure magazine retention and release. Compatible With: HK CC9HKP-22107$5.95 -
HK CC9 Holster - Comp Carry - LH
Comp-Tac
$59.95Comp-Tac HK CC9 Comp Carry Holster - Left Hand Designed for the HK CC9 with the HK Parts MOD 1 compensator, this holster offers a secure fit, smooth draw, and adjustable cant and ride height for optimal comfort and performance during concealed or...HKP-22097$59.95 -
HK USP Magazine Extension - 9mm - +7 Round
HKP HK Parts
$69.95HK Parts Magazine Extension for your HK USP or HK USPT 9mm +7 Magazine Extension Easy to install. Simply add the mag extension to your existing mag body and follower. No gunsmithing required. Made in the US from aircraft-grade hard coat anodized aluminum...HKP-21841-M$69.95 -
HK MP5, MP5K Thread Protector - 1/2x32 - RH
HKP HK Parts
$14.95HKP HK MP5/K Thread Protector - Threaded 1/2x32 RH This MP5/K thread protector is designed to safeguard your barrel threads from damage when a muzzle device is not in use. Made in the USA from high-quality steel, it offers durability and a precise fit...HKP-21829$14.95 -
HK P30L Conversion Barrel - .40 S&W to 9mm - Threaded - 13.5x1
RCM
$214.95RCM HK P30L .40 to 9mm Conversion Barrel - Threaded - 13.5x1 This 9mm conversion barrel is a drop-in replacement that allows your P30L to shoot the ubiqutous 9mm cartridge. Includes a thread protector. Each barrel is made from ordnance-grade steel,...HKP-21788$214.95 -
HK P2000, USPC Magazine - .40 S&W - 12 Round - LEO Marked - Used
H&K Heckler & Koch
$69.95H&K 12 Round HK P2000/USPC .40 S&W Magazine - LEO Marked - Used All steel with rubberized floorplate with finger rest. Compatible With: HK USP Compact .40 Cal HK P2000 .40 Cal Will also fit the P2000SK .40 (will not fit flush)HKP-21781$69.95 -
B&T APC Takedown Pin - Front
B&T Brugger & Thomet
$11.95B&T APC Takedown Pin - Front Factory B&T front take down pin for the APC receiver. Compatible With: APC Series Standard receiver Glock receiver Sig receiverHKP-21737$11.95 -
B&T TP9N Foregrip
B&T Brugger & Thomet
$100.00B&T TP9N Foregrip Factory B&T black foregrip for the TP9N firearm. Compatible With: B&T TP9NHKP-21719$100.00 -
Out Of Stock
HK416, MR556 Cleaning Kit - Green Pouch
H&K Heckler & Koch
$64.95H&K HK 416/MR556 Cleaning Kit with Green Pouch This is a genuine HK factory cleaning kit. Includes: Nylon storage bag, olive green Nylon brush Cleaning rod, 6 parts Barrel brush Chamber brush Oil brush Oil bottle, empty Cleaning wipes, 50 ea...HKP-21623$64.95 -
HK416, MR556, HK417, MR762 Pistol Grip - K2 XL
Magpul
$22.95Magpul Moe K2 XL AR Grip Designed for shooters with larger hands, the K2-XL Grip is similar to the MOE-K2 Grip – AR15/M4 but nearly 25% bigger. A drop-in upgrade for the AR15/M4, it offers a more vertical grip angle thereby improving comfort...HKP-21554$22.95 -
HK G3 Incomplete Backplate - Painted
H&K Heckler & Koch
$29.95HK G3 Incomplete Backplate - Factory German G3 refinished backplate. A great replacement or spare to have around to replace your broken or worn out backplates. Please note you will need two rivets, nylon ring, recoil spring in order to...HKP-21541$29.95 -
Out Of Stock
HK417, G28 Patrol Handguard - RAL8000
H&K Heckler & Koch
$987.95H&K HK 417/G28 Patrol Handguard - RAL 8000 Anodized Genuine HK 417/G28/MR762 patrol handguard anodized in RAL 8000. Compatible With: HK 417 HK MR762 G28HKP-21516$987.95