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, PTR Magazine - 20 Round - Date Coded - USED
H&K Heckler & Koch
Now: $24.95Was: $34.95Heckler and Koch HK91, G3, PTR 20 Round Date Coded Magazine - USED VARYING CONDITION SHOWN - SOLD INDIVIDUALLY DENTS AND PITTING USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. Factory German HK 20...HKP-99439-MNow: $24.95Was: $34.95 -
HK CC9 +3 Magazine Extension Kit with Pinky Rest - 9mm
HKP HK Parts
$49.95HKP HK CC9 +3 Magazine Extension +3 magazine extension for the HK CC9. This low-profile base pad increases a standard 15-round CC9 magazine to 18 rounds. Machined in the U.S. from aircraft-grade hard coat anodized aluminum with steel hardware...HKP-22476-M$49.95 -
HK91, G3 Folding Stock - HDA3
Haga Defense
$349.95HDA3 Folding Stock for HK91, G3 The HDA3 is a modular, USA-made stock system developed by Haga Defense and A3 Industries. Built for strength, adaptability, and cross-platform compatibility, it delivers premium rigidity, smooth adjustability, and...HKP-22356-M$349.95 -
HK VP9, P30 Magazine Base Pad - Hard Duty
Grayguns
$22.00The Grayguns HK VP9 and P30 Magazine Base Pads are designed for hard-duty use. The base pads are manufactured from 6061 Aluminum and professionally finished with MIL-A-8625 Type III anodized coating. Pads go through a glass-beading process...HKP-22344$22.00 -
Picatinny Optic Mount Shield - Aimpoint T2, H2 - S.W.O.R.D.S
Frost Defense
$239.95Aimpoint T-2, H-2 Optic Mount - S.W.O.R.D.S - Picatinny Mount The S.W.O.R.D.S Enhanced optic shield designed for Aimpoint T2/H2 red dot sights. This patent-pending mount system provides robust glare and impact protection by surrounding the ocular and...HKP-22338-M$239.95 -
Out Of Stock
HK VP9 Slide Release Lever - Short - Right
H&K Heckler & Koch
$59.95H&K VP9 Slide Release Lever - Short - Right Short version of the right side slide release for VP series pistols. Can be combined with 260431, 50254706, 50239395 Compatible With: VP9 VP9L VP9 Match VP9 Tactical VP9SK VP9K VP9...HKP-22006$59.95 -
Carbon-Cleaner - 500 ml Aerosol
SchleTek
$32.95SchleTek Carbon Cleaner 500 ml Aerosol Time-saving removal of stubborn fouling. Special formula for heavily used firearms. Frequent and thorough gun cleaning is not only a prerequisite to achieve maximum performance with your firearm, but also a...HKP-21766$32.95 -
HK MP5 Adapter - Folding Stock
B&T Brugger & Thomet
$114.95B&T HK MP5 Adapter for Folding Stock Upgrade your MP5 platform with precision Swiss engineering. The Brügger & Thomet HK MP5 Adapter for Folding Stock is designed to provide a secure and reliable mounting interface for B&T’s...HKP-21751$114.95 -
On Sale
HK MP5K Folding Stock With Direct Fit Adapter
MI Midwest Industries
Now: $369.95Was: $419.95HK MP5K Folding Stock With Direct Fit Adapter The Midwest Industries Alpha folding stock paired with the HK Parts picatinny rail adapter offers unparalleled versatility. Adjust your length of pull, cheek riser, and butt pad to your exact style of...HKP-21514-MNow: $369.95Was: $419.95 -
B&T Unigrip QD with Bipod
B&T Brugger & Thomet
$198.95B&T Unigrip QD with Bipod This B&T foregrip features a retractable bipod for superior weapon stability in both the standing and prone positions. Specifications: Condition: Factory new Material: Polymer/alloy Heat deflection...HKP-21387-M$198.95 -
Picatinny 8" Stock with 1913 Folding Mech
JMAC Customs
$304.90 - $309.90JMac 8" Stock with 0.275" Cheek Rise - 1913 Attachment Feautures: New Integrated Rubber Buttpad 2x Integrated QD Sling Socket 8" Length 0.275" Cheek Rise Drilled and tapped for optional cheek risers Compatible with JMAC & SIG folding...HKP-21241-M$304.90 - $309.90 -
B&T MP9, TP9 Case
B&T Brugger & Thomet
$199.95B&T Carrying Case and MP9 and TP9 B&T factory issue MP9 and TP9 carrying cases. These cases are no longer in production or available from any other vendors. A limited quantity is available. Get yours before they are all...HKP-21084$199.95