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 MP5K, HK SP89 Top Rail
MI Midwest Industries
Now: $109.95Was: $129.95MI HK MP5K, HK SP89 Top Rail Midwest Industries picatinny and M-lok top rail for MP5, HK94 style weapons and clones. An amazing profile option for your MP5 style weapon. Offers a combination of strength, adaptability and extreme lightweight features...HKP-19113Now: $109.95Was: $129.95 -
HK VP9 Magazine Floorplate - 17 Round - Rubberized
H&K Heckler & Koch
$8.95Rubberized Floor Plate - 17 Round Magazine - HK VP9 HK German rubberized factory floor plate. This was made to be used specifically for the New VP9 17 Round Magazine.HKP-19321$8.95 -
On Sale
HK P2000, P2000SK Bench Mat
HKP HK Parts
Now: $10.95Was: $13.95HKP HK P2000/P2000SK Bench Mat Perfect for all HK P2000, P2000SK 9mm, .40, .357 Sig Models This isn't your ordinary gun cleaning mat! Show your pride for your firearm while using this high quality neoprene rubber backed and cloth top gun cleaning mat to...HKP-17450Now: $10.95Was: $13.95 -
Out Of Stock
HK416, MR556 Rear Diopter Sight Assembly - 10.5"
H&K Heckler & Koch
$188.95H&K HK MR556/416 10.5" Rear Diopter Sight Assembly This is the proper rear sight for use on all HK 416 10.5 uppers and firearms. This is also a great sight alternative for those who need a lower sight setup for the AR, XCR, etc. To be used in...HKP-01109$188.95 -
Sling Pin O-Ring - Ambi
H&K Heckler & Koch
$1.95H&K Ambidextrous Sling Pin O-Ring HK ambidextrous sling pin replacement O-ring for all ambidextrous sling pins. This item is a common wear/breakage part that does need to be replaced from time to time. This is the part that creates the + seal to keep...HKP-01090$1.95 -
On Sale
HK SP5K Micro Comp - Knurled - Threaded 1/2x28
HKP HK Parts
Now: $20.95Was: $26.95HKP HK SP5/K 9mm Knurled Micro Comp - Threaded 1/2x28 Our SP5 micro comp has the appearance of a standard factory style thread protector but now extended and slotted to provide a micro comp feature. The added slots help mitigate gasses allowing the...HKP-21374Now: $20.95Was: $26.95 -
On Sale
HK VP Series Curved Trigger
Lazy Wolf
Now: $109.95Was: $129.95C1 - Curved VP Series Trigger - Lazy Wolf Guns In a collaboration with Lazy Wolf Guns, HK Parts is offering the finest aftermarket triggers for your HK VP9 & VP40 handguns. The drop in VP9 series trigger is a superior trigger, developed after more...HKP-18748Now: $109.95Was: $129.95 -
On Sale
HK91, G3 Extended Rifle Length Handguard - M-LOK
AIM
Now: $109.95Was: $129.95HK G3 EXTENDED RIFLE LENGTH HANDGUARD- M-LOK The most innovative and modular HK variant handguard on the market, our M-LOK HK forend can be used with all modern and traditional shooting techniques. CNC machined aluminum construction makes for a solid,...HKP-18173Now: $109.95Was: $129.95 -
On Sale
HK MP5 Trigger Pack - Semi-Auto - 9mm - 922r
HKP HK Parts
Now: $215.95Was: $269.95Trigger Pack For MP5, HK94 Variants Such as Zenith, POF- 4 US 922r Compliant Parts HK MP5, HK94 9mm Semi Auto Trigger Pack complete. Each Trigger group incorporates the following US made compliant parts completely assembled & ready to drop in. The...HKP-17878Now: $215.95Was: $269.95 -
On Sale
IMI 32 Round UZI Magazine - LIKE NEW
IMI
Now: $32.95Was: $44.95Uzi 32 Round 9mm Magazine - Like New - IMI Licensed - Mec-Gar Manufacture Made in Italy by the renowed Mec-Gar magazine manufacturing company with IMI Licensing. An all steel production and a blued finish to help protect it against rust. These are the...HKP-21231Now: $32.95Was: $44.95 -
On Sale
HK45 Railok™ Compensator
HKP HK Parts
Now: $129.95Was: $189.95HK Parts Railok™ Mounting System Compensator: H&K HK45 The HK Parts Railok™ mounting system compensator strikes a seamless balance of form and function. Users will immediately notice the reduction in muzzle flip and recoil,...HKP-21113Now: $129.95Was: $189.95 -
On Sale
M-LOK Cantilever Rail - Light Mount
Magpul
Now: $16.95Was: $19.95Magpul Rail Light Mount M-LOK Designed for use with all M-LOK mounting surfaces, the M-LOK polymer cantilever rail/light mount allows the attachment of various MIL-STD-1913 Picatinny spec rail-mounted accessories such as lights and optics, and directly...HKP-20689Now: $16.95Was: $19.95