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
HK91, G3 Magazine - 20 Round - 7.62x51/.308
Thermold
Now: $15.96Was: $19.95Thermold HK91, G3 Magazine - 20 Round - 7.62x51/.308 - US Made This US-made magazine is made of spaceHKP-02612Now: $15.96Was: $19.95 -
Out Of Stock
HK MP5 Handguard - Tri-Rail
MI Midwest Industries
$169.95MI HK MP5 Tri-Rail Handguard Features: Professional grade one-piece designHKP-21485$169.95On Sale
HK MP5K, SP5K, SP89 Handguard with Handstop - SL
Magpul
Now: $41.52Was: $47.45Magpul HK MP5K, HK SP5K, HK SP89 SL Handguard TheHKP-19310Now: $41.52Was: $47.45
HK USPC, P2000 Magazine with Pinky Rest - 9mm - 10 Round
H&K Heckler & Koch
$59.95USP Compact & P2000 9mm Magazine – Complete (10-Round with Extended Floor Plate) Brand new HK German manufactured. Meets the requirements of areas with high capacity 10-round magazine restrictions...HKP-01460-M$59.95Out Of Stock
HK416, MR556 Recoil Buffer - Tungsten
H&K Heckler & Koch
$97.95Heckler and Koch Tungsten Recoil Buffer for HK MR556 and HK416 The proprietary tungsten HK-manufactured buffer is one of the reasons why the HK 416 and MR556 are as reliable as they are. This is the...HKP-00041$97.95
HK MP5 A3 Retractable Stock Buffer
HKP HK Parts
$6.74MP5 A3 Retractable Stock "H" Buffer For All HK A3 Retractable Stocks The A3 stock buffer is a high wear and common replacement items that does need to be replaced when they become torn, cracked,...HKP-18160$6.74
HK VP9K Magazine - 15 Round
H&K Heckler & Koch
$54.95H&K 15 Round HK VP9A1 K Magazine Made from premium stainless steel and equipped with a red, anti-tilt polymer follower for easy identification, these 15-round magazines offer exceptional strength and...HKP-21650-M$54.95
HK MP5, HK94, SP5K Rear Sight Drum and Base - US
HKP HK Parts
$53.47HKP HK Parts Rear Sight Drum and Base for HK MP5, HK94, and HK SP5K Finally, an affordable factory correct rear sight that does not break the bank or lead to settling for inferior 3rd world produced...HKP-17512$53.47
HK MP5, MP5K, APC Flash Hider - 3 Lug - Quick Detach - 9mm
B&T Brugger & Thomet
$135.00B&T HK MP5/MP5K 9mm Flash Hider - 3-Lug - Quick Detach This flash hider slips over the end of the 3-lug barrel and with a light push and a 1/4 turn the flash hider attaches to the end of the tri-lug...HKP-16902$135.00
HK P30L Tactical Barrel - 9mm - 5.06" - Threaded 13.5x1 LH - German
H&K Heckler & Koch
$343.95H&K P30L 9mm Tactical Barrel - Threaded 13.5x1 LH Made in Germany at the HK factory from HK German Cold Hammer Forged barrel blanks, heat treated and finished to HK specs. This is the only HK factory...HKP-16746$343.95
HK USP Magazine Floorplate - .45 ACP - 12 Round - Standard
H&K Heckler & Koch
$18.95H&K 12 Round HK USP .45 ACP Standard Magazine Floor Plate New factory fresh production. Perfect for concealed carry or for those that prefer a lower profile footprint. Compatible With:HKP-01198$18.95Out Of Stock
HK416, MR556 Ejection Port Cover - FDE
H&K Heckler & Koch
$59.95Heckler and Koch German HK 416, MR556 Ejection Port Cover In FDE HK manufactured newer polymer style cover assembly found on the latest HK 416 and HK MR556's. This item can also be used on other AR15...HKP-18062$59.95