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, MKE AP5 Bolt Head - Stripped - GUNSMITH SPECIAL
Other
Now: $69.95Was: $149.95Turkish Contract HK MP5, MKE AP5 Stripped Bolt Head - GUNSMITH SPECIAL VARYING CONDITION SHOWN - SOLD INDIVIDUALLY Please Note: Will require work before being functional. HKP recommends the work be performed by a professional gunsmith. The Condition will...HKP-99372Now: $69.95Was: $149.95 -
On Sale
WOOX M-LOK Rail Covers - Checkered - GEN2
WOOX
$34.95 - $43.95WOOX Checkered GEN2 HK Rifle, SMG M-LOK Rail Covers The checkered GEN2 M-LOK rail covers upgrade any M-LOK or KeyMod handguard with a warmer feel, more traction, and added heat protection. The Checkered texture uses black nylon bushings and is...HKP-22463-M$34.95 - $43.95 -
Out Of Stock
Compact Vertical Foregrip With Hand Stop - Picatinny
JMK
$98.95Compact Vertical Foregrip with Hand stop - Picatinny The JMK Vertical Foregrips are ideally suited for applications with restricted space. All grips are precision-machined from black walnut and complemented by a 6061 aircraft-grade aluminum handstop...HKP-22411-M$98.95 -
Out Of StockOn Sale
B&T APC223, APC300, APC308 Stock or Brace Adapter - Picatinny
B&T Brugger & Thomet
Now: $63.95Was: $159.95B&T APC223/300/308 Stock Adapter - Picatinny This adapter allows the installation of picatinny-style stocks or braces onto B&T APC223, APC300, and APC308 platforms. Compatible With: B&T APC223/300/308HKP-22281Now: $63.95Was: $159.95 -
On Sale
HK P30L MOD 1 Insert Kit - Picatinny Rail and Smooth Plate
HKP HK Parts
Now: $22.95Was: $28.95HKP HK Parts HK P30L Rail and Plate Insert - Replacement MOD 1 Insert Kit Replacement Picatinny rail and smooth plate inserts with hardware for the MOD 1 compensator.HKP-22218Now: $22.95Was: $28.95 -
Century Arms AP51 Fixed Stock Backplate
HKP HK Parts / Heckler & Koch
$89.95H&K/HKP Century Arms AP51 Fixed Stock Backplate HKP's drop-in replacement backplate and recoil rod is expertly modified to fit the Century Arms AP51. Crafted to the precise length for optimal function and dependable performance, this backplate...HKP-22188$89.95 -
Out Of Stock
HK CC9 Magazine Body - 9mm - 12 Round
H&K Heckler & Koch
$5.95Heckler and Koch 12-Round Magazine Body for HK CC9 OEM 10-round magazine body for the HK CC9, made in Germany by Heckler & Koch and ideal as a factory-spec replacement. Compatible With: CC9HKP-22147$5.95 -
HK CC9 Trigger Complete
H&K Heckler & Koch
$55.95H&K CC9 Trigger Complete Genuine H&K complete trigger assembly for the CC9 pistol. Compatible With: HK CC9HKP-22126$55.95 -
HK CC9 Ejector Roll Pin
H&K Heckler & Koch
$5.95H&K CC9 Ejector Roll Pin The ejector roll pin was made in Germany for the CC9 pistol, secures the ejector in place for proper ejection function. Compatible With: HK CC9HKP-22125$5.95 -
HK CC9 Sear Spring
H&K Heckler & Koch
$6.95H&K CC9 Sear Spring Made in Germany, the CC9 sear spring applies tension to the sear for proper engagement and release during firing cycle. Compatible With: HK CC9HKP-22115$6.95 -
HK91, G3 A3 Retractable Buttstock - New Old Stock
H&K Heckler & Koch
$1,345.95Heckler and Koch HK91, G3 A3 Retractable Stock - New Old Stock Genuine HK A3 retractable stock the HK91 or G3. These are original HK production units that have been out of manufacture for years, making remaining NOS increasingly rare. Compatible...HKP-22104$1,345.95 -
On Sale
HK UMP Recoil Rod Spring
HKP HK Parts
Now: $7.95Was: $9.95HKP UMP Recoil Rod Spring Upgrade or replace your UMP recoil system with this high-quality recoil rod spring from HK Parts. Whether you're maintaining a factory setup or enhancing a custom build, the HKP recoil rod spring is a perfect fit for UMP-style...HKP-22089Now: $7.95Was: $9.95