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
MP9, TP9, APC9, GHM9, SPC9 Magazine Spring - 9mm - 30 Round
B&T Brugger & Thomet
Now: $4.95Was: $6.95B&T 30 Round 9mm Magazine Spring Factory B&T replacement magazine spring for 30 round 9mm magazines. Compatible With: MP9/TP9 APC9 GHM9 SPC9HKP-21758Now: $4.95Was: $6.95 -
Out Of Stock
Tri-Lug Adapter - 1/2x28 RH to Tri-Lug - 9mm - B&T
B&T Brugger & Thomet
$125.00B&T 1/2x28 to Tri-Lug Adapter for 9mm Convert any 1/2x28 RH 9mm threaded barrel to the HK spec. tri-lug with B&T's Swiss-made adapter adapter threaded 1/2x28. Compatible With the Following 9mm Firearms: HK MP5, MP5K, SP5, SP5K HK UMP...HKP-21752$125.00 -
On Sale
HK416, MR556 Extractor Spring Buffer
HKP HK Parts
Now: $3.95Was: $5.39HKP HK MR556/416 Extractor Spring Buffer This buffer fits inside the extractor spring in the extractor pocked of the bolt. This item is a high wear item and a spare would be highly advised. Compatible With: HK MR556 & HK416 FirearmsHKP-21604Now: $3.95Was: $5.39 -
On Sale
HK MP5 Receiver Flat - Smooth Top
HKP HK Parts
Now: $99.95Was: $125.95HKP HK MP5 Receiver Flat - Smooth Top The MP5 receiver flat has been meticulously crafted by the original German tool and die maker of the LSC receiver flat, utilizing factory original German prints and specifications. This receiver boasts a flat top,...HKP-21552Now: $99.95Was: $125.95 -
On Sale
HK P2000 Holster - Comp Carry
Comp-Tac
Now: $71.95Was: $89.95Comp-Tac HK P2000 Comp Carry Holster This holster is manufactured by the best holster company in the business, Comp-Tac, specifically for use with the HK Parts compensators. This holster is based on the ever-popular Comp-Tac International holster and...HKP-21118-MNow: $71.95Was: $89.95 -
On Sale
HK VP9, P30, HK45 Front Sight - Green
Wilson Combat
Now: $41.95Was: $49.99Wilson Combat HK VP9/SK, VP40, HK45C, P30/L/SK Front Sight - Green Snag Free Front Sight, Vickers Elite for H&K® H&K® Vickers Elite replacement front sight for 45, 45C, P30 9mm, P30 40 S&W, P30L 9mm, P30L 40 S&W, P30SK,...HKP-18381Now: $41.95Was: $49.99 -
On Sale
HK VP9, VP40 Compensator - Quick Detach
HKP HK Parts
$82.46 - $112.46HKP Comp Weight™ HK VP9, VP40 Quick Detach Compensator CLEARANCE COMPENSATORS ARE NOT AVAILABLE IN ANY COLORS ASIDE FROM WHAT IS PURCHASABLE ON THE WEBSITE. WE WILL NOT BE MACHINING THESE COMPENSATORS AGAIN SO IF THEY COLOR YOU WANT IS SOLD...HKP-21080-M$82.46 - $112.46 -
HK VP40, P30 Magazine - 18 Round - Red
HKP HK Parts / Heckler & Koch
$89.95HKP and Heckler and Koch 18 Round .40 S&W Magazine Red for HK VP40, HK VP40 Tactical, HK P30, HK P30L, and HK P30S HK Parts +5 magazine extension coupled with a 13 round .40 cal factory German magazine body adds 5 additional rounds. For a total...HKP-20182$89.95 -
On Sale
HK VP9 Tactical Barrel - 9mm - 4.45" - Threaded 13.5x1 LH
RCM
Now: $190.95Was: $225.00RCM HK VP9 9mm Tactical Barrel - Threaded 13.5x1 LH Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest threaded replacement barrel for the HK VP9 9mm pistol, ideal...HKP-16850Now: $190.95Was: $225.00 -
HK Mark 23 Rear Sight Retaining Screw
H&K Heckler & Koch
$19.95HK Mark 23 Rear Sight Retaining ScrewHKP-01628$19.95 -
On Sale
HK P30L Tactical Barrel - .40 S&W - 5.06" - Threaded 9/16x24 RH
RCM
Now: $190.95Was: $225.00RCM HK P30L .40 S&W Tactical Barrel - Threaded 9/16x24 RH Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest threaded replacement barrel for the HK P30L .40...HKP-16713Now: $190.95Was: $225.00 -
HK VP40, P30, P30L Magazine Body - .40 S&W - 13 Round
H&K Heckler & Koch
$45.99HK VP40, P30, P30L, P30S 13 Round Magazine Housing - .40 Cal Brand new HK German factory magazine body ONLY for the 13 round .40 cal magazine. This item is for the mag body NOT the complete magazine. Compatible With: VP40 P30 P30L P30S *This is the...HKP-17227$45.99