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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HK91, G3 JMK PRS Hybrid Stock - Walnut
JMK
$387.95HK91, G3 JMK PRS Hybrid Stock - Walnut The JMK HK91 PRS hybrid wood stock comes fully assembled and ready for a quick and easy install. This custom hybrid stock is based on the Magpul PRS Lite design, with an old-school wood-stock look. The walnut part...HKP-22409$387.95 -
HK G3, HK417, HK33, HK53, HK93 Flash Hider - 5/8x24 - Plan B Taper Mount
JMAC Customs
$116.955/8x24 - Plan B Taper Mount Flash Hider for HK G3, HK417, HK33, HK53, HK93 The 360HD is the latest evolution in JMac Custom's Recoil Reduction Device (RRD) family of muzzle brakes, designed to meet the needs of serious shooters...HKP-22412$116.95 -
On Sale
HK416 A5 Bolt Carrier
H&K Heckler & Koch
Now: $1,549.95Was: $1,997.95H&K HK416 A5 Bolt Carrier Factory HK416 A5 full auto bolt carrier. This carrier is backwards compatible with earlier HK416 A1 and A3 variants. Features the updated captive firing pin retaining system. Compatible With: HK416 A5 HK416 A1 HK416...HKP-22328Now: $1,549.95Was: $1,997.95 -
HK MP5 Trigger Group - AC Unity Grip - Match Trigger
HKP HK Parts
$644.85HKP HK MP5 Trigger Group with AC Unity Grip & Match Trigger The MP5 match trigger group combined with the AC Unity grip is a great choice for anyone seeking a tactical and aesthetically pleasing build. Featuring a robust metal housing and a top-tier...HKP-22250$644.85 -
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 0,1,F pictogram markings. All three positions align...HKP-22170-M$899.95 - $989.95 -
On Sale
HK MP5 Roller Standard 8mm - .40 S&W, 10mm - BLEMISHED
H&K Heckler & Koch
Now: $12.95Was: $20.95H&K MP5 40/10 Standard 8mm Roller - BLEMISHED MEASURED 8.00mm ROLLER MARKED INCORRECTLY. PACKAGING MAY NOT REFLECT PRODUCT. CONDTION MAY VARY. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL...HKP-00338-BNow: $12.95Was: $20.95 -
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: CC9HKP-22151$5.95 -
HK CC9 Slide Release
H&K Heckler & Koch
$46.95Heckler and Koch Slide Release for HK CC9 Factory slide release manufactured by Heckler and Koch for the CC9 platform. Allows manual release of the slide and engages the slide stop after the last round when used with an empty magazine. Compatible...HKP-22124$46.95 -
HK91, G3, HK33, HK53, HK93 Paddle Magazine Release - Anti-Rattle - USED
H&K Heckler & Koch
$42.95Heckler and Koch Anti Rattle Paddle Magazine Release for HK91, HK G3s and HK33, HK53, HK93 - USED This is a used German anti-rattle paddle mag release for installation on all Heckler and Koch Firearms .223 and .308 rifles. Compatible With: HK91,...HKP-22061$42.95 -
HK MP5K Folding Stock with Adapter - .40 S&W, 10mm
HKP HK Parts
$239.95HKP HK MP5K .40,10mm Folding Stock with Adapter Genuine H&K UMP folding stock completely assembled with the HK Parts stock adapter. CNC machined aircraft grade aluminum with QD sling attachment point. Available exclusively at HK Parts. Compatible...HKP-21893$239.95 -
HK416, MR556 Facemount KeyMount (KeyMicro) - 360HD 1/2-28 FD
JMAC Customs
$124.95JMac Customs 360HD 1/2-28 FD Facemount KeyMount (KeyMicro) The JMac Customs 360HD is a high-performance muzzle device designed for superior durability, recoil mitigation, and compatibility with suppressors. Engineered with 360° ports for optimal...HKP-21825$124.95 -
HK91, G3, MP7, G36 Side Rail - Short
B&T Brugger & Thomet
$42.00B&T HK G3/HK91, G36, MP7 Side Rail - Short Swiss made B&T short side rail for the B&T quad rail handguard. Compatible With B&T Handguards For: HK91/G3 G36 MP7HKP-21775$42.00