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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HK USP Compact Flat Tracker - Volker Precision
Volker
$112.95HK USP Compact Flat Tracker - Volker Precision Volker Precision flat tracker for USP Compact models in all calibers. Available exclusively at HK Parts Compatible With: HK USPCHKP-22448$112.95 -
HK MP5, MP5K Cocking Handle - Knurled - Extended
Leapers - UTG
$29.97HK MP5, MP5K Cocking Handle Extended Extended cocking handle for the MP5 style of firearms. These cocking handles also count towards one US made component for 922r compliance. Made by UTG to work with their monolithic M-LOK handguards...HKP-22421$29.97 -
HK Receiver Flat Bending Set Jig - RENTAL
HKP HK Parts
$99.95Flat Bending Jig Set For All HK Style Receiver Flats - RENTAL Receiver flat bending jig RENTAL for all HK receiver flats. Our rental jigs are crafted in the US from billeted steel and include the latest revisions with proper dowel spacing for the...HKP-19595-RENTAL$99.95 -
On Sale
HK91, G3 Conversion Magazine - .22LR - 20 Round - BLEMISHED
H&K Heckler & Koch
Now: $149.95Was: $199.95H&K Heckler & Koch's Conversion Magazine for HK91, G3 - Conversion Kit - 20 Round - BLEMISHED CONDITION MAY VARY. DENTS VISIBLE BUT MAGAZINES ARE STILL FUNCTIONAL. REFER TO PHOTOS TO ASCERTAIN CONDITION. Priced for ONE Conversion Magazine -...HKP-20750-BNow: $149.95Was: $199.95 -
HK MR556 A4 Handguard - 10"
H&K Heckler & Koch
$259.95H&K HK MR556 A4 10" Handguard This 10" factory H&K MR556 A4 handguard offers a lightweight, free-floating design that enhances accuracy and provides rock-solid mounting for accessories. Made from high-strength aluminum, it features a slim profile...HKP-21934$259.95 -
HK21Ammunition Belt with Starter Tab - DM6 - 200 Round
H&K Heckler & Koch
$114.95H&K HK21 DM6 200 Round Belt with Starter Tab - 7.62x51/.308 Custom 200 round belt for HK21 and MG3 belt-fed rifles because 50 rounds just isn't enough! Compatible With: HK21HKP-21925$114.95 -
HK G3 Standard Stock Buttpad - Green - Used
H&K Heckler & Koch
$2.95H&K G3 Standard Stock Buttpad - Green - Used This German-made buttpad is an excellent replacement for your worn-out or broken buttpadd on the G3 stock. Used but fully functional. Compatible With: HK G3HKP-21865$2.95 -
HKP HK P2000 MOD 1 Compensator
HKP HK Parts
$179.95HKP HK P2000 MOD 1 Compensator - Non-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, getting you back on target quicker. Each MOD 1...HKP-21815$179.95 -
B&T APC223, APC300 Buttplate - Telescopic Stock
B&T Brugger & Thomet
$136.00B&T Telescopic Stock Buttplate - Brace Conversion Factory B&T replacement buttplate for B&T APC rifle caliber telescoping stocks. Can also be used to upgrade a B&T brace to a stock. Compatible With: B&T APC223/300/308 B&T...HKP-21753$136.00 -
B&T Takedown Pin Rear
B&T Brugger & Thomet
$12.95B&T APC Takedown Pin - Rear Factory B&T rear take down pin for the APC receiver. Compatible With: APC Series Standard receiver Glock receiver Sig receiverHKP-21727$12.95 -
HK VP9 R3D 2.0 Rear Sight
XS Sights
$59.95XS Sight Systems HK VP9OR R3D 2.0 Rear Sight Their second-generation R3D night sights are engineered to give you a brighter stronger set of sights. Easily install their sights with a set that requires 50% less force for installation. R3D sights are built...HKP-21618$59.95 -
On Sale
HK UMP Magazine - .40 S&W - 30 Round - BLEMISHED
HKP HK Parts
Now: $36.95Was: $49.95HKP HK UMP (.40 S&W) 30 Round Magazine - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Each 30 round magazine will fit all HK UMP .40 caliber...HKP-17583-BNow: $36.95Was: $49.95