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
HK G3K, HK33K Flash Hider - 4 Prong - Open
RCM
Now: $158.95Was: $187.95RCM HK G3K/HK33K Flash Hider - 4 Prong - Open The RCM G3K and HK33K flash hider can be welded to a 12.69" barrel to achieve a non-SBR OAL of 16 plus inches or add to any other configuration. Made in the US from ordnance grade steel and counts as 1 922r...HKP-21599Now: $158.95Was: $187.95 -
On Sale
HK MP5F, MP5 40, 10 Cocking Handle - BLEMISHED
H&K Heckler & Koch
Now: $38.95Was: $85.99H&K MP5F & MP5 40/10mm Cocking Handle - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. New HK German factory correct cocking handle. Each unit...HKP-00098-BNow: $38.95Was: $85.99 -
On Sale
HK MP5 Buttstock Locking Lever - USED
H&K Heckler & Koch
Now: $59.95Was: $89.95H&K MP5 Stock Locking Lever - USED USED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. Compatible With: MP5 (NOT compatible with MP5 .22 LR)HKP-02560-BNow: $59.95Was: $89.95 -
On Sale
HK MP5, HK94, SP5 Binary Trigger Housing - Ambi - BFSIII - 9mm - INCOMPLETE - BLEMISHED
FA Franklin Armory
Now: $599.95Was: $849.95HK MP5, HK94, SP5 Binary Trigger Housing - Ambi - BFSIII - 9mm - INCOMPLETE - BLEMISHED ONLY 1 UNIT AVAILABLE - AS PICTURED INCOMPLETE - MISSING GRIP COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN...HKP-20642-BNow: $599.95Was: $849.95 -
On Sale
HK SIG P320C Compensator - BLEMISHED
HKP HK Parts
Now: $124.95Was: $189.95HKP SIG P320C Compensator - BLEMISHED ONLY 1 UNIT AVAILABLE - AS PICTURED DINGS COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Our P320 P320C compensator...HKP-21092-BNow: $124.95Was: $189.95 -
On Sale
HK UMP Extended Top Rail - Red
HKP HK Parts
Now: $47.95Was: $59.95HKP HK UMP Extended Top Rail - Red Nearly an 1" longer than the standard length top rail. This picatinny top rail allows the user to add an eotech, aimpoint, acog, etc. Made in the USA from aluminum material and hard coat anodize in a beutiful Red...HKP-21049Now: $47.95Was: $59.95 -
Out Of Stock
HK USP Holster - Comp Carry RH - 9mm, .40 S&W, .45 ACP
Comp-Tac
$79.95Rail Mount Compensator & Comp Weight™ Compensator International Holster – Right Hand for HK USP .45/.40/9mm At last a custom made Comp-Tac International OWB holster for your HK pistol that allows you to have the Rail Mount Compensator,...HKP-20976$79.95 -
On Sale
Bolt Knob - Acorn
Tactical Precision MFG
Now: $19.95Was: $37.99TPM Acorn Bolt Knob These bolt knobs can dress up any rifle with a 5/16×24 threaded bolt handle. Specifications: Dimensions:1.5″ x 7/8″ x 7/8″ Weight: 2 oz. Threading: 5/16x24HKP-20902Now: $19.95Was: $37.99 -
On Sale
Bolt Knob - Drake - Titanium
Tactical Precision MFG
Now: $24.95Was: $44.99Drake Bolt Knob - Aluminum These bolt knobs are made from aluminum and are finished a in midnight bronze Cerakote and will fit any 5/16-24 threaded bolt handle. Features: Material: aluminum Color: titanium Threading: 5/16-24 Compatible...HKP-20782Now: $24.95Was: $44.99 -
On Sale
Remington 700 - 30 MOA - Scope Base Short Action
Tactical Precision MFG
Now: $35.95Was: $76.99TPM Remington 700 Scope Base Long Action 30 MOA These tight tolerance, bomb proof scope rail allow the shooter to make best use of the scope's elevation adjustment for those long-range shots and engagements with 30 MOA options and will match factory...HKP-20765Now: $35.95Was: $76.99 -
On Sale
HK SL8 Adjustable Buttstock Piece - Used
H&K Heckler & Koch
Now: $9.95Was: $29.95H&K HK SL8 Adjustable Buttstock Piece - UsedHKP-20052Now: $9.95Was: $29.95 -
$39.95