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 Two Magazines and Rubberized Mag Pouch - 20 Round - Aluminum - Like New
H&K Heckler & Koch
$36.95HK Heckler and Koch Two 20 Round Aluminum Mags with Rubberized Mag Pouch for HK91 Two Like-New HK German 20 round aluminum magazines, accompanied by a premium hand-picked green rubbeHKP-21804$36.95 -
Out Of Stock
Picatinny Optic Mount - 39mm - Aimpoint ACRO / NANO
B&T Brugger & Thomet
$85.00B&T Aimpoint ACRO / NANO 39mm QD Mount The B&T ACRO NANO optic mount is a universal QD mount for any firearm featuring a Picatinny top rail. Keep your optic profile compact with this Swiss made...HKP-21761$85.00 -
Out Of Stock
Picatinny Optic Mount - 23mm - Aimpoint ACRO, NANO
B&T Brugger & Thomet
$98.00B&T Aimpoint ACRO / NANO 23mm QD Mount The B&T ACRO NANO optic mount is a universal QD mount for any firearm featuring a Picatinny top rail. Keep your optic profile compact with this Swiss made...HKP-21742$98.00 -
On Sale
HK VP9L Compensator - Quick Detach - BLEMISHED
Now: $52.46Was: $169.95Comp Weight™ HK VP9L Quick Detach Compensator - Black - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE...HKP-19129-BL-BNow: $52.46Was: $169.95 -
On Sale
HK MP5 Alpha Folding Stock With Direct Fit Adapter - .22 LR
MI Midwest Industries
Now: $267.72Was: $419.95MI/HKP HK MP5 .22 LR Alpha Folding Brace/Stock Adapter The Midwest Industries alpha folding stock paired with the HK Parts picatinny rail adapter offers unparalleled versatility. Adjust your length...HKP-21515-MNow: $267.72Was: $419.95 -
HK91, G3 Extractor - Used
H&K Heckler & Koch
$6.85HK German HK G3, HK, 91 & PTR 91 .308 Extractor - Used Surplus HK German extractor. Fits all models of HK G3 style firearms and CETME's. Compatible With:HKP-21507$6.85 -
On Sale
HK MP5 Bolt Group - 9mm - Full Auto - Complete
H&K Heckler & Koch
Now: $2,245.95Was: $2,874.95H&K HK MP5 9mm Complete Full Auto Bolt Group This is a factory genuine HK German full auto bolt group compiled with the best German parts available for those that need the best parts on their...HKP-21478Now: $2,245.95Was: $2,874.95 -
On Sale
HK Binary Selector Set - Ambi Housing - RAL8000
HKP HK Parts
Now: $50.97Was: $79.95HKP/H&K MP5/K 9mm Ambi Housing Franklin Armory Binary Selector Set - RAL 8000HKP-21380Now: $50.97Was: $79.95 -
HK VP9, P30 +15 Magazine Extension Kit - Black
HKP HK Parts
$74.95Magazine Extension Kit +15 – Black - HK VP9, HK P30 HK Parts magazine extension +15 kit adds 15 additional rounds to the HK VP9/P30 magazine with the simple swap of the floor plate & high-reliability...HKP-21340$74.95 -
B&T Unigrip for TL99
B&T Brugger & Thomet
$159.95B&T Unigrip for TL99 This for grip is made to be used with the MP5 handguard with integrated tactical light (BT-400971-4). It mounts around the housing of the light in the handguard. This is a good...HKP-21228$159.95 -
B&T TP9, MP9, TP380 Stock Conversion Kit
B&T Brugger & Thomet
$147.95Stock Conversion Kit - TP9, MP9, TP380 Converts B&T's telescopic brace into a telescopic stock. Compatible with B&T part number BT-20522 for TP9, TP380.HKP-19128$147.95 -
Aimpoint T1 Optic Mount - Lower 1/3 Co-Witness
AIM
$29.99Aimpoint - T1 Mount - Lower 1/3 Co-Witness Features a machined recoil lug for consistent, repeatable mounting. Features: 6061 T6 aluminumHKP-19335$29.99