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
AR-15 Stock - ACS - Mil-Spec
Magpul
Now: $70.46Was: $93.95Magpul AR-15 ACS Stock - Mil-Spec The patent-pending Magpul ACS (Adaptable Carbine/Storage) mil-spec model is a drop-in replacement butt-stock for AR15/M16 carbines using mil-spec-sized receiver...HKP-01134Now: $70.46Was: $93.95 -
On Sale
HK MP5, AP5 Trunnion - 9mm
MKE
Now: $58.46Was: $64.95HK MP5 Trunnion Made to exact factory HK specifications for the HK MP5K type builds. Machined to HK spec making the install painless and hassle free. Compatible With: MP5HKP-22523Now: $58.46Was: $64.95 -
HK MR556 A4 Hammer - Incomplete - Semi-Auto
H&K Heckler & Koch
$43.95Heckler and Koch Hammer for HK MR556 Semi-Auto rifles Factory-original German steel hammer for MR556 A4 rifles. Designed as a direct replacement for worn or damaged hammers in MR556 A1 and A4 trigger...HKP-22384$43.95 -
HK45C MOD 1 Compensator - Threaded Barrel
HKP HK Parts
$189.95HK45C MOD 1 Compensator - Threaded Barrel The HK Parts MOD 1 compensator strikes a seamless balance of form and function. Users will immediately notice the reduction in muzzle flip and recoil,...HKP-22360$189.95 -
HK Rifle Buttpad for Wooden Stocks - Used
HKP HK Parts
$16.95Heckler and Koch Buttpad for Wooden Stocks - Enhanced Polymer Buttpad - Used Used and in varying condition. See photos for examples. The enhanced polymer buttpad is a direct replacement for the...HKP-22211$16.95 -
On Sale
HK93, HK53, AP53 Binary Trigger Group- 3 Position Navy Engraved
H&K Hechler & Koch / FA Franklin Armory
$899.95 - $989.95Franklin Armory/H&K 53/93 & AP53 Binary Trigger Group- 3 Position Navy Engraved US-made binary trigger group installed in a German Navy-style polymer housing. Features a 3-position selector with...HKP-22170-M$899.95 - $989.95 -
HK CC9 Magazine Spring - 10 Round
H&K Heckler & Koch
$5.95Heckler and Koch 10-Round Magazine Spring for HK CC9 Genuine 10-round HK CC9 magazine spring, made from steel for reliable feeding and long service life. Compatible With:HKP-22151$5.95 -
HK CC9 Disconnector Pin
H&K Heckler & Koch
$5.95H&K CC9 Disconnector Pin This H&K CC9 disconnector pin secures the disconnector within the fire control assembly for proper timing and function.HKP-22118$5.95 -
HK USPC Compensator - MOD 1 - .45 ACP - Threaded Barrel
HKP HK Parts
$179.95HK Parts MOD 1 Compensator for Threaded Barrel: H&K USPC .45 ACP The HK Parts MOD 1 compensator perfectly blends form and function, setting a new standard in muzzle control. Experience a significant...HKP-22085$179.95 -
On Sale
HK33, HK53, HK93 SBA5 Pistol Stabilizing Brace and Adapter
SB Tactical
Now: $287.96Was: $319.95SB Tactical HK 93/33/53 SBA5 Pistol Stabilizing Brace with Adapter SB Tactical combined with our HK 93/33/53 end cap creates a true drop-in brace, perfect for those seeking the flexibility that the...HKP-22069-MNow: $287.96Was: $319.95 -
HK VPSK, P30SK Magazine Floorplate - 9mm - 13, 15 Round - Extended
H&K Heckler & Koch
$53.95H&K VP9SK/P30SK 13 & 15 Round Extended Floor Plate Factory HK floorplate extension for VP9SK 13 and 15 round magazines. Features a durable black polymer body with a textured finish for improved grip...HKP-21990$53.95 -
On Sale
HK VP40 Gen 1 Rail Mount Compensator - Blue - Non-Threaded - BLEMISHED
HKP HK Parts
Now: $70.46Was: $189.95HKP HK VP40 Gen 1 Rail Mount Compensator - Blue - Non-Threaded - BLEMISHED DOES NOT INCLUDE ALLEN WRENCH COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE...HKP-99082Now: $70.46Was: $189.95