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 VP9, VP40 Straight Trigger - Adjustable
Grayguns
Now: $105.95Was: $125.00Grayguns Adjustable Straight Trigger for HK VP9, VP40 Adjustable straight trigger for HK VP9 and VP40 standard variants. Features an over-travel adjustment and a 90-degree vertical wall for an optimal trigger break. The straight face allows a lower...HKP-22342Now: $105.95Was: $125.00 -
On Sale
Picatinny Optic Mount Shield - Aimpoint T2, H2 - S.W.O.R.D.S
Frost Defense
Now: $203.95Was: $239.95Aimpoint T-2, H-2 Optic Mount - S.W.O.R.D.S - Picatinny Mount The S.W.O.R.D.S Enhanced optic shield designed for Aimpoint T2/H2 red dot sights. This patent-pending mount system provides robust glare and impact protection by surrounding the ocular and...HKP-22338-MNow: $203.95Was: $239.95 -
On Sale
HK45, USP Magazine Spring - Extended
HKP HK Parts
Now: $8.95Was: $11.95HK45/USP Extended Magazine Spring .45 ACP Replacement spring for +7 and +10 HK Parts magazine extensions. Compatible With: HK45/HK45 Compact HK USPHKP-22299Now: $8.95Was: $11.95 -
On Sale
HK P30, P2000 SA/DA Spartan Hammer - V1
Lazy Wolf
$118.95 - $125.95Lazy Wolf HK P30 & P2000 SA/DA Spartan Hammer - V1 Transform the feel and look of your HK P30 or P2000 Single Action/Dual Action pistol with the Lazy Wolf Guns Skeletonized Spartan Hammer. Redesigned geometry yields a superiorly smooth and...HKP-22186-M$118.95 - $125.95 -
On Sale
HK91, G3 Extractor - Enhanced Coated Polish
HKP HK Parts
Now: $19.95Was: $24.95HKP HK 91/G3 Extractor - Enhanced Coated Polish Built for dependable performance, this polished and coated extractor delivers smooth cycling and consistent extraction. A great choice for both upgrades and routine replacements. Compatible With: HK...HKP-22182-MNow: $19.95Was: $24.95 -
On Sale
HK MP5, G3, HK93 Flat Trigger - Skeletonized
HKP HK Parts
Now: $54.95Was: $68.95HKP 90 Series Flat Trigger - Skeletonized - USA The HK Parts skeletonized flat trigger for 90 series firearms offers improved control, reduced weight, and a modern look. Precision-machined from ordnance-grade billet steel with a QPQ nitride finish for...HKP-21580Now: $54.95Was: $68.95 -
Out Of Stock
HK CC9 Backstrap - Standard
H&K Heckler & Koch
$13.95H&K CC9 Standard Backstrap This genuine H&K CC9 backstrap provides the factory grip profile for a custom fit. Compatible With: HK CC9HKP-22108$13.95 -
On Sale
HKP .45 ACP Vertical Slot Micro Comp - Threaded 16x1 RH
HKP HK Parts
Now: $23.95Was: $29.95HKP .45 ACP Vertical Slot Micro Comp - Threaded 16x1 RH The HK Parts micro comp & thread protector strikes a balance between a lightweight, minimalistic design and range functionality. The micro comp easily threads on to the end of any factory spec...HKP-22084Now: $23.95Was: $29.95 -
On Sale
HK91, G3 Magazine - 15 Round - Refinished, BLEMISHED
H&K Heckler & Koch
Now: $44.95Was: $84.95Heckler and Koch 15 Round Steel Magazine, Refinished and marked BLEMISHED, for HK91, G3 7.62x51 / .308 MAGAZINE BODIES HAVE PITTING - CONDITION MAY VARY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR...HKP-21922-BNow: $44.95Was: $84.95 -
HK G3 Buttstock Buttpad - Standard - 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 buttpad on the G3 stock. Used but fully functional. Compatible With: HK G3HKP-21865$2.95 -
HK45 E2 Magazine with Extension - 15 Round
HKP HK Parts
$113.95HKP HK Parts 15 Round E2 Magazine for HK45 HK45 and HK45 Tactical +5 magazine extension. Paired with a new HK German 10 round HK45 magazine for a total capacity of 15 rounds. Ideal for competition shooters that would like a higher magazine...HKP-21803-M$113.95 -
On Sale
HKP Hat - Snapback - Flat Brim - OSFM - Black
HKP HK Parts
Now: $13.45Was: $19.95HKP Flat Brim Snapback Hat - OSFM - Black Get your hands on some of our premium hats! Features: Official HKP merchandise 100% cotton Structured 4 sewn eyelets Matching color sweatband Plastic adjustable snap Firm front panel Size: OSFM - Adult...HKP-20717Now: $13.45Was: $19.95