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.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
On Sale
HK MP5, SP5 Binary Trigger Group - SEF Navy - BFSIII - 9mm - Push Pin - BLEMISHED
FA Franklin Armory
Now: $828.71Was: $1,299.95Franklin Armory HK MP5 - BFSIII HK-C1 – Binary Trigger Group – SEF – Contoured ONLY 1 UNIT AVAILABLE - AS PICTURED BINARY MODE DOES NOT WORK - DELAYED HAMMER RELEASEHKP-20004-PP-BNow: $828.71Was: $1,299.95 -
On Sale
HK416 Handguard - Super Modular M-LOK - 14.5"- Black - BLEMISHED
Geissele
Now: $375.59Was: $549.95Geissele Super Modular Rail for HK416 and MR556 - BLEMISHED ONLY 1 UNIT AVAILABLE - AS PICTURED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN...HKP-99811Now: $375.59Was: $549.95 -
On Sale
HK G36E, SL8, USC Picatinny Rail Segment - Polymer - 3.25" - USED
H&K Heckler & Koch
Now: $38.21Was: $59.95HK G36E, SL8, USC Universal Polymer Rail With Screws for the G36E, SL8, USC USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. HK German manufacture...HKP-99814Now: $38.21Was: $59.95 -
On Sale
HK G36E, SL8, USC Picatinny Rail Segment - 3.25" - Polymer - USED
H&K Heckler & Koch
Now: $38.21Was: $59.95HK G36E, SL8, USC Universal Polymer Rail With Screws for the G36E, SL8, USC USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. HK German manufacture...HKP-18489-USEDNow: $38.21Was: $59.95 -
On Sale
HK91, G3, HK33, HK53, HK93 Blank Firing Barrel Adapter - Threaded 15x1 RH - BLEMISHED
Now: $24.21Was: $34.95US-Made HK Rifle Blank Firing Adapter - BLEMISHED ONLY 1 UNIT AVAILABLE - AS PICTURED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCHKP-99817Now: $24.21Was: $34.95 -
HK USC Bolt Group - Complete - Semi-Auto - .45 ACP
H&K Heckler & Koch
$1,300.00Heckler and Koch USC .45 ACP Factory Semi-Auto Bolt Group - Complete HK German factory complete welded semi-auto bolt assembly for the USC .45 ACP. Factory assembled and ready as a complete unit...HKP-99805$1,300.00 -
On Sale
HK91, G3 Steel Magazine - 20 Round - Parkerized - Rare Factory LEO Marked - USED
H&K Heckler & Koch
Now: $199.44Was: $289.9520 Round Steel Magazine HK L.E.O - HK 91, G3, PTR .308- Factory LEO Marked - USED ONLY 3 UNITS AVAILABLE USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL...HKP-99801Now: $199.44Was: $289.95 -
On Sale
HK91, G3, PTR Magazine - 20 Round - HJ Date Coded - Used
H&K Heckler & Koch
Now: $20.40Was: $34.95Heckler and Koch HK91, G3, PTR 20 Round HJ Date Coded Magazine - Used VARYING CONDITION SHOWN - SOLD INDIVIDUALLY USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALEHKP-22560-HJ-USEDNow: $20.40Was: $34.95 -
On Sale
HK33, HK93 Barrel - 300 BLK - 16.1" - Threaded 5/8x24 - USED
RCM
Now: $149.78Was: $234.95NCM HK33/93 .300 BLK 16.125 Inch Barrel - Threaded 5/8x24 - USED ONLY 1 UNIT AVAILABLE - AS PICTURED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL.HKP-17392-USEDNow: $149.78Was: $234.95 -
On Sale
HK Optic Mount Ring Set - 1 Inch for 30mm Scope - USED
H&K Heckler & Koch
Now: $57.34Was: $89.95H&K Scope Mount Ring Set - 1 Inch For 30mm Scope - USED ONLY 1 UNIT AVAILABLE - AS PICTURED USED PARTS ARE SOLD AS IS. THISHKP-02474-USEDNow: $57.34Was: $89.95 -
On Sale
HK USPC, P2000 Magazine .40 S&W - 12 Round - LEO Marked - USED
H&K Heckler & Koch
Now: $50.97Was: $79.9512 Round HK USPC & HK P2000 .40 S&W LEO Marked Magazine - USED ONLY 2 UNITS AVAILABLE USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL.HKP-02244-USEDNow: $50.97Was: $79.95 -
On Sale
HK MP5 Handguard with LED Weapon Light - TL99 - Used
B&T Brugger & Thomet
Now: $448.34Was: $649.95B&T Brugger & Thomet Model TL99 CREE LED Lit Handguard for HK MP5 and HK94 Models - USED ONLY 1 UNIT AVAILABLE - AS PICTUREDHKP-16901-USEDNow: $448.34Was: $649.95