All Parts
At HK PARTS, we bring you a wide array of high-quality H&K accessories and components for your favorite firearms. Whether you're upgrading your H&K pistol or rifle, or even looking for parts kits, we've got you covered. Discover a range of top-rated components for popular models like VP9, USP, P30, MP5, MP5K, G36, HK416, and more. From triggers, barrels, and grips to magazines, stocks, and sights, we have it all. Enhance your firearm's performance and functionality with our premium components.
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H&K 25 Round HK MP5 .22LR Magazine - Black
H&K Heckler & Koch
$49.95HK MP5 .22 - 25 Round Magazine Each magazine offers a 25-round capacity and fits all HK, Walther, Umarex MP5 A5 & MP5SD .22 rifles. Factory HK German manufactured magazines these are NOT aftermarket. Compatible With: MP5 .22 MP5SD .22 Please...HKP-02296$49.95 -
H&K MP5/SP5/MP5K/SP5K 9mm Extractor Spring
H&K Heckler & Koch
$9.95H&K MP5, SP5, MP5K, & SP5K 9mm Extractor Spring This extractor spring will fit all of the 9mm HK variants including clones. This part is German HK factory manufactured and made to the tightest of specifications and tolerances and will provide a...HKP-00055$9.95 -
On Sale
H&K 30 Round MP5 9mm Magazine
H&K Heckler & Koch
Now: $69.95Was: $78.95H&K German MP5, SP5, SP5K, and MP5K 9mm - 30 Round Curved Magazine - NEW Heckler & Koch German Magazine 9mm 30 Round curved all-steel magazine. German HK MP5 and MP5K mags are the finest HK magazines you can get. Compatible With: HK MP5,...HKP-00086Now: $69.95Was: $78.95 -
H&K 91/G3 (7.62x51/.308) 20 Round Aluminum Magazine - Used
H&K Heckler & Koch
$9.95HK G3, HK91 & PTR91 German 20 Round Magazine - Alloy - Used German manufactured aluminum paratrooper magazines used in. Perfect for your HK G3/PTR style firearm. Each unit is German manufactured and a great deal for the condition of these mags as...HKP-18068$9.95 -
HKP HK UMP (.45 ACP) 25 Round Magazine
HKP HK Parts
$49.95HKP HK UMP (.45 ACP) 25 Round Magazine Made from advanced polymer material with steel feed lips just like the German UMP 45 magazine. Compatible With: HK UMP .45 LWRC SMG .45 (This magazine is the factory OEM magazine for the LWRC SMG 45) Gideon...HKP-16448$49.95 -
FMP MP5, MP5K Extractor Spring
FMP
$4.95FMP MP5, MP5K Extractor Spring New old stock HK contract FMP extractor spring will fit all of the 9mm HK variants including clones. This part was made using HK prints on HK contract tooling that the German HK factory manufactured for the Portuguese...HKP-18201$4.95 -
H&K Rifle Extractor Spring For All HK's
H&K Heckler & Koch
$6.74HK German 308/7.62 & 556/.223 Rifle Extractor Spring New factory HK German part. The extractor spring is the number 1 replaced item on HK firearms. Many HK gunsmiths recommend upgrading MP5/94 series HK's with this longer/stronger silver spring vs...HKP-00188$6.74 -
HKP MP5K/SP89/SP5K Vertical Grip
HKP HK Parts
$29.95MP5K, SP89, SP5K Vertical "K" Grip - USA HK vertical grip for the HK MP5K models. Made in the USA and counts as one US made 922r compliant part. The finest US made forearm available. Compatible With: MP5K, MP5K-PDW, SP89 & SP5K...HKP-16474$29.95 -
Fixed Stock - OD Green - Surplus - HK 91, G3, PTR
H&K Heckler & Koch
$25.95Fixed Stock - OD Green - Surplus - HK 91, G3, PTR Used Olive Drab green German surplus stock complete. Ready to install on your HK or clone rifle. Used in perfect working condition. Each stock includes all parts to be a complete stock ready to use on...HKP-16329$25.95 -
HKP MP5 & MP5K 9mm Dual Magazine Clamp
HKP HK Parts
$29.95HKP MP5 & MP5K 9mm Dual Magazine Clamp The MP5 and MP5K magazine grip or dual magazine clamp fits all 9mm MP5 or MP5K curved, steel magazines. This part holds two magazines together for ease of use and easy access to 2 magazines. It is made in...HKP-00084-M$29.95 -
H&K Small Push Pin - Forearm & Lower
H&K Heckler & Koch
$8.95H&K Small Push Pin - Forearm & Lower All steel HK German small push pin for use on the lower grip housing. The small push pin is also the correct pin for holding the HK forearm in place. Compatible With: HK91, G3, PTR HK93, 33, 53 HK MP5, 94,...HKP-00075$8.95 -
H&K 91/G3 (7.62x51/.308) Slimline Forearm - Jungle Green - Used Good
H&K Heckler & Koch
$14.95H&K 91/G3 (7.62x51/.308) Slimline Forearm - Jungle Green - Used Good Used German Military surplus jungle green Slimline Forearm with Heat Shield. Each item is used in good shape and will clean up nicely with a little bit of TLC and some attention...HKP-16266$14.95 -
H&K Roller Retainer Spring - Action 3
H&K Heckler & Koch
$6.74H&K Roller Retainer Spring - Action 3 This part is the second-generation roller holder. Each retainer fits all "action 3" 9mm MP5 & MP5K bolt heads & MP5 40/10 bolt heads. The roller retainer spring is a common repair and replacement item and...HKP-00068$6.74 -
Zenith 30 Round HK MP5, MP5K 9mm Magazine
Zenith
$34.9530 Round Magazine - Zenith - MP5, MP5K This is one of the best magazine option to have on hand as they have been known to be reliable and at a great price! You can never have enough magazines for your MP5 or MP5K. Buy in bulk and save big. While...HKP-20671$34.95 -
H&K 91/G3/MSG90 (7.62x51/.308) 20 Round Magazine - Aluminum - EXCELLENT/LIKE NEW
H&K Heckler & Koch
$16.95HK G3, HK91, & PTR91 German 20 Round Magazine - Alloy German Manufactured Aluminum Paratrooper Magazines In Excellent - Like New Condition Perfect for your HK G3/PTR style firearm. Each unit is German manufactured, and a great deal for the condition...HKP-00524$16.95 -
H&K Ejector Lever Spring
H&K Heckler & Koch
$6.95H&K Ejector Lever Spring The new HK German factory ejector lever spring fits all HK 90 series of rifles and pistols. This is a common repair and replacement part and it is a recommended spare part for every HK enthusiast or shooter. Compatible...HKP-00059$6.95 -
HKP MP5, SP5, HK94 Wide Forearm
HKP HK Parts
$25.95HKP MP5, SP5, & HK94 Wide Forearm - USA This MP5 forearm is also known as the tropical wide forearm. Made from the same polymer material to factory HK specs in the US. Compatible With: MP5, HK94 MP5 40/10 Zenith, AA, MKE, POF Clones or...HKP-02312$25.95 -
HKP HK VP9 Optics Plate #2 RMR, Holosun
HKP HK Parts
$49.95HK VP9 Series Optics Ready #2 Optic Mount - Steel The finest all steel mounting solution for your HK VP9 Series Optic Ready model. New solid billet machined steel optics plate. Each plate is CNC machined from a solid billet of ordnance grade steel,...HKP-19564$49.95 -
H&K 10 Round HK VP9/P30 9mm Magazine
H&K Heckler & Koch
$44.95HK VP9/P30 9mm 10 Round Magazine New HK German manufacture. Each magazine holds ten rounds only. This is the factory-correct magazine, not a knock-off or pinned 15-round magazine. Compatible With: HK VP9, VP9B, VP9L, VP9 OR, VP9 Match HK P30, P30L...HKP-01273-M$44.95 -
HKP 1st Gen Roller Retainer Plate To Spring Upgrade
HKP HK Parts
$9.95HKP 1st Gen Roller Retainer Plate To Spring Upgrade This action 3 roller retainer spring for all 1st Generation bolt heads replaces the oval-shaped roller retainer plate. HK made a wire spring as an upgrade for later production bolt heads to improve the...HKP-02119$9.95 -
H&K 91/G3 (7.62x51/.308) Ejector Lever - Used
H&K Heckler & Koch
$3.95.308 Ejector Lever - Used In perfect working order, pulled from surplus HK German G3's. Compatible With: HK G3 HK 91 PTR-91 HK 51HKP-01738$3.95 -
H&K 30 Round HK 416 .22LR Magazine - Black
H&K Heckler & Koch
$34.95HK, Umarex, Walther, HK416 - .22LR Magazine - 30 Round Magazine - BLACK Heckler & Koch Factory magazines are made to H&K specifications and tolerances using high quality materials that provide perfect fit, durability and reliability. Expect...HKP-19834$34.95 -
Out Of Stock
H&K HK USP/P2000 Extended Magazine Release
H&K Heckler & Koch
$19.95HK USP/P2000 Extended Magazine Release This mag release makes it possible to release the magazine without changing the position of your grip. Compatible With All HK Pistols In All Calibers 45, 40, 357, & 9mm: All HK USP Tactical, Elite, & Expert...HKP-01669$19.95 -
H&K HK .45 ACP Pistols Barrel O-Ring - Green
H&K Heckler & Koch
$4.95HK .45 ACP Pistols Barrel O-Ring - Green Get them while you can, as they are no longer available in green. The green o-rings were used when HK introduced o-rings on the Mark 23 and USP 45 Tactical HK pistols. All HK O-rings are made of the same material...HKP-01984$4.95 -
KCI 30 Round MP5 9mm Magazine
KCI
$39.99 - $44.95Korean 30 Round MP5, MP5K Magazine - GEN 2 - KCI USA Compatible With: HK MP5, HK94, MP5SD, HK SP5 HK MP5K, SP89, SP5K Zenith, Century AP5, MKE, POF & Omega, PTR In Spec 94, MP5 & MP5K, SP89 Style Clones Features: Latest generation and factory...HKP-00955-M$39.99 - $44.95 -
On Sale
HKP G3/33/91/93 All Steel Folding Bipod
HKP HK Parts
Now: $59.95Was: $87.95HKP G3/33/91/93 All Steel Folding Bipod Finally, an aftermarket solution for HK enthusiasts after that bipod to finish out their build. The HK Parts bipod was painstakingly developed to replicate the original HK offering as close as possible. ...HKP-20834Now: $59.95Was: $87.95 -
HK Pistol Trigger Return Spring Tool
USA
$17.95HK Trigger Return Spring Tool - Pliers The HK Parts trigger return spring pliers are a must-have tool born from necessity. If you've ever attempted to replace the trigger return spring on an HK pistol, you understand how challenging this task can be. Our...HKP-16031$17.95 -
On Sale
HKP HK P30L 9mm/.40 S&W Gen 2 Rail Mount Compensator
HKP HK Parts
$114.95 - $184.95HKP HK P30L 9mm/.40 S&W Gen 2 Rail Mount Compensator Crafted from aircraft grade billet aluminum and finished with a durable Cerakote coating, this compensator is designed to seamlessly integrate with the sleek lines of the Heckler & Koch...HKP-19067-M$114.95 - $184.95 -
H&K 17 Round HK VP9, HK P30 17 Round 9mm - Red Follower
H&K Heckler & Koch
$49.95H&K 17 Round HK VP9, HK P30 17 Round 9mm - Red Follower New HK German manufacture & factory fresh production. This is the same mag as the standard VP9/P30 17 round magazine only this mag comes with a factory HK German red follower installed from...HKP-19627$49.95 -
HKP Small Push Pin - Forearm & Lower
USA
$6.95HK Small push pin - US MAde All steel small push pin for use on the lower grip housing for a push pin style of lower housing. Black nitride finish which adds extra durability to the pin plus corrosion and abrasion resistance. The small push pin is also...HKP-20397$6.95 -
Heckler & Koch Decal Sticker - 5 pack
H&K Heckler & Koch
$0.00Factory Heckler & Koch Logo Decal In Black & Red These decals are the perfect addition to your safe, vehicle, motorcycle, boat, or just about anywhere. Show the world that "In a world of compromise some don't...HKP-02533$0.00 -
HKP Rear Sight Tool For Diopter Sights
HKP HK Parts
$29.95HK Diopter Rear Sight Tool - Military Contract Diopter sight tool is perfect for those that need to adjust all sizes of HK diopter type sights for the entire family of HK rifles including clones. A military contract over-run and mil-spec quality at the...HKP-16511$29.95 -
H&K 9mm Ejector Lever - 3rd Gen
H&K Heckler & Koch
$69.95H&K 9mm Ejector Lever - Latest Generation The German latest generation ejector has all of the upgrades and improvements made since the MP5 was introduced over 50 years ago. Fits all of the HK 9mm variants. Stamped, formed, heat treated,...HKP-00058$69.95 -
H&K HK G3, HK 91 Grip for Metal Frames - OD Green - Surplus
H&K Heckler & Koch
$9.95H&K HK G3, HK 91 Grip for Metal Frames - OD Green - Surplus Used in surplus condition. Each item is used in good shape and will clean up nicely with a little bit of TLC and some attention. A great value for the price. Compatible...HKP-16333$9.95 -
H&K HK German Roll Pin
H&K Heckler & Koch
$2.95HK German Roll Pin German HK roll pin is crafted from a process using rolled spring steel resulting in robust part with stable fitment. HK suggests replacing the roll pin with a new unit each time it is removed. Fits and retains the extractor, mag...HKP-01921$2.95 -
On Sale
BDM 50 Round HK MP5 .22LR Magazine Drum - Translucent
BDM Black Dog Machine
Now: $79.95Was: $99.95HK MP5 .22 50 Round Drum Magazine For The MP5-A5 & MP5-SD .22 Rifle Made in the USA by BDM exclusively for HK Parts. Using an existing drum model that is tried and true. Compatible With: HK, Walther, Umarex MP5 & MP5SD .22 rifles. MP5...HKP-16235Now: $79.95Was: $99.95 -
HKP HK MR556/HK416 FFRS Retaining Spring
HKP HK Parts
$4.99HKP HK MR556/HK416 FFRS Retaining Spring The retainer spring retains the handguard locking pin on the free floating rail system (FFRS). These can become damaged with the removal of the handguard screws. Once the spring is damaged, they require...HKP-21503$4.99 -
HKP HK 416, Colt M4 .22 Match Trigger Upgrade Spring Kit
HKP HK Parts
$17.49HK 416 .22 & Colt M4 - .22 Match Trigger Spring Kit - Set of 3 Enhanced Springs: The HK Parts Match drop-in spring upgrade set will enhance your HK 416's trigger pull to an even smooth, crisp, and lighter pull that will promote better control,...HKP-17340$17.49 -
HKP MP5 Replacement Buffer for Folding Stock or End Cap
HKP HK Parts
$3.49HKP MP5 Replacement Buffer for Folding Stock or End Cap Spare replacement buffer for choate folding stocks or end caps. Compatible With: Choate MP5 and MP5K Stocks or End Caps (NOT compatible with MP5 .22 LR)HKP-18735$3.49 -
H&K HK USP/P/45 Enhanced Match Flat Sear Spring
H&K Heckler & Koch
$9.95Enhanced Match Flat Sear Spring The nickel-plated sear spring is also regarded as a "match" flat spring as it will improve the feel and "smoothness" when pulling the trigger as it takes up some of the gritty feel. It is a must-have upgraded part to...HKP-01811$9.95