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 MP5 Slip Trip - Super Safety
War Hammer Armaments
Now: $83.95Was: $98.95War Hammer Armaments Slip Trip for HK MP5 Super Safety Trigger Groups War Hammer Armaments slip trip for MP5 Super Safety setups. Required to make a Super Safety work with the MP5 platform. Precision machined from aluminum, heat-treated, and finished in...HKP-22829Now: $83.95Was: $98.95 -
On Sale
HK91, G3 Telescopic Stock - 4 Position
MKE
Now: $465.95Was: $517.95MKE HK91 G3 4 Position Telescopic Stock Telescopic stock designed for HK91 and G3 platform rifles. Modified to provide four adjustable length-of-pull positions to customize fit. Specifications: Steel rails and components Telescopic system Simple...HKP-22712Now: $465.95Was: $517.95 -
On Sale
HK91, G3 A2 Stock - Tan - Saudi Contract - Rare
Other
Now: $168.95Was: $279.95VARYING CONDITION SHOWN - SOLD INDIVIDUALLY Original Saudi Arabian contract G3 A2 fixed stock in tan. Don't miss your chance to get a rare contract G3 stock assembly in this condition. Compatible With: HK91, G3 In spec. clones and custom builds THIS...HKP-99424Now: $168.95Was: $279.95 -
On Sale
HK UMP, USC Front Sight - Omega
OMEGA
Now: $7.95Was: $9.95Omega UMP And USC Front Sight Front sight for HK UMP and HK USC Compatible With: UMP USCHKP-22513Now: $7.95Was: $9.95 -
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
HK MP5, HK90 Series Hammer Strut - USED
H&K Heckler & Koch
Now: $5.21Was: $9.95HK MP5, G3, 91, PTR, 93, 33, HK94 Hammer Strut - USED SOLD INDIVIDUALLY USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK German Hammer Strut for 90 series rifles and pistols. A perfect...HKP-15445-USEDNow: $5.21Was: $9.95 -
On Sale
HK91, G3, FMP Locking Piece - USED
H&K Heckler & Koch
Now: $8.93Was: $14.95Heckler and Koch Locking Piece for HK FMP HK91 and G3 - USED SOLD INDIVIDUALLY. USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK German Locking Piece for FMP - USED. This is the factory...HKP-16712-USEDNow: $8.93Was: $14.95 -
On Sale
M-LOK Angled Foregrip - Walnut
JMK
Now: $38.95Was: $43.95JMK Angled foregrip M-LOK - Walnut JMK's M-LOK covers feature an integrated hand stop to ensure a secure grip during use. They are an excellent choice for pairing with JMK M-LOK Covers, providing your build with a high-quality finish. These covers are...HKP-22405-MNow: $38.95Was: $43.95 -
On Sale
Rail Panel Cover - M-LOK - 6 Slot
JMK
$22.95 - $25.95JMK Rail Panel Cover - M-LOK - 6 Slot JMK M-LOK rail panels are compatible with platforms featuring 6 M-LOK slots. These modular panels are suited for numerous applications. Each panel is sold individually. M-LOK panels are CNC-machined from solid...HKP-22404-M$22.95 - $25.95 -
On Sale
Pistol Flash Hider - 9mm - 4 Prong - Threaded 1/2x28 - BLEMISHED
USA
Now: $53.95Was: $74.95HK (9mm) 4 Prong Pistol Flash Hider - Threaded 1/2x28 - BLEMISHED VARYING CONDITION SHOWN IN PHOTOS - SOLD INDIVIDUALLY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE...HKP-01965-BNow: $53.95Was: $74.95 -
On Sale
HK VP9SK Competition Magwell
HKP HK Parts
Now: $47.95Was: $59.95HKP HK VP9SK Competition Magwell Lightweight VP9SK Magwell with a flared funnel for faster, more reliable reloads. Features: CNC machined from billet aluminum Type 3 hard coat anodized finish Functional funnel design for faster, smoother reloads Made in...HKP-22336-MNow: $47.95Was: $59.95 -
On Sale
HK45C MOD 1 Compensator
HKP HK Parts
Now: $143.95Was: $179.95HK Parts MOD 1 Compensator: H&K HK45C 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 comp includes...HKP-22278Now: $143.95Was: $179.95