All Parts

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, 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 MP5/SP5/MP5K/SP5K 9mm Extractor Spring H&K MP5/SP5/MP5K/SP5K 9mm Extractor Spring

    H&K MP5/SP5/MP5K/SP5K 9mm Extractor Spring

    H&K Heckler & Koch

    $9.95
    H&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
    Qty in Cart: 0
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    $9.95
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  • Fixed Stock - OD Green - Surplus - HK 91, G3, PTR Fixed Stock - OD Green - Surplus - HK 91, G3, PTR

    Fixed Stock - OD Green - Surplus - HK 91, G3, PTR

    H&K Heckler & Koch

    $25.95
    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 your HK G3, 91, PTR or other HK style firearm. As...
    HKP-16329
    $25.95
    Qty in Cart: 0
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    $25.95
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  • FMP MP5, MP5K Extractor Spring FMP MP5, MP5K Extractor Spring

    FMP MP5, MP5K Extractor Spring

    FMP

    $4.95
    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 Military and police forces. This...
    HKP-18201
    $4.95
    Qty in Cart: 0
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    $4.95
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  • HK UMP (.45 ACP) 25 Round Magazine HK UMP (.45 ACP) 25 Round Magazine

    HK UMP (.45 ACP) 25 Round Magazine

    HKP HK Parts

    $49.95
    HK UMP 45 magazine & LWRC SMG45.  Made from advanced polymer material with steel feed lips just like the German UMP 45 magazine. This UMP 45 magazine will fit all HK UMP 45 firearms as well as the LWRC SMG 45 and other UMP style builds such as...
    HKP-16448
    $49.95
    Qty in Cart: 0
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    $49.95
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  • H&K 91/G3 (7.62x51 / .308) Ejector Lever - Used

    H&K 91/G3 (7.62x51 / .308) Ejector Lever - Used

    H&K Heckler & Koch

    $3.95
    .308 Ejector Lever - Used   It is in perfect working order, pulled from surplus HK German G3's.   Compatible With: HK G3 HK 91 PTR-91 HK 51
    HKP-01738
    $3.95
    Qty in Cart: 0
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    $3.95
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  • H&K 91/G3 (7.62x51 / .308) 20 Round Aluminum Magazine - Used H&K 91/G3 (7.62x51 / .308) 20 Round Aluminum Magazine - Used

    H&K 91/G3 (7.62x51 / .308) 20 Round Aluminum Magazine - Used

    H&K Heckler & Koch

    $7.95
      HK 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...
    HKP-18068
    $7.95
    Qty in Cart: 0
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    $7.95
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  • H&K 30 Round MP5 9mm Magazine H&K 30 Round MP5 9mm Magazine

    H&K 30 Round MP5 9mm Magazine

    H&K Heckler & Koch

    $78.95
    H&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-00086
    $78.95
    Qty in Cart: 0
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    $78.95
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  • HKP MP5K/SP89/SP5K 9mm Vertical Grip HKP MP5K/SP89/SP5K 9mm Vertical Grip

    HKP MP5K/SP89/SP5K 9mm Vertical Grip

    HKP HK Parts

    $29.95
    MP5K, 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. Perfect item for the following applications: MP5K, MP5K-PDW, SP89...
    HKP-16474
    $29.95
    Qty in Cart: 0
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  • H&K Small Push Pin - Forearm & Lower

    H&K Small Push Pin - Forearm & Lower

    H&K Heckler & Koch

    $7.95
    H&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
    $7.95
    Qty in Cart: 0
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  • H&K Rifle Extractor Spring For All HK's H&K Rifle Extractor Spring For All HK's

    H&K Rifle Extractor Spring For All HK's

    H&K Heckler & Koch

    $6.74
    HK German 308, 7.62 & 556, .223 Rifle Extractor Spring New factory HK German part. The extractor spring is the #1 most common repair and replacement item on HK firearms. Many HK gunsmiths recommend using this extractor spring on all HK 90 Series HK's...
    HKP-00188
    $6.74
    Qty in Cart: 0
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    $6.74
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  • H&K 91/G3/MSG90 (7.62x51 / .308) 20 Round Magazine - Aluminum - Excellent/Like New H&K 91/G3/MSG90 (7.62x51 / .308) 20 Round Magazine - Aluminum - Excellent/Like New

    H&K 91/G3/MSG90 (7.62x51 / .308) 20 Round Magazine - Aluminum - Excellent/Like New

    H&K Heckler & Koch

    $12.95
    HK 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
    $12.95
    Qty in Cart: 0
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    $12.95
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  • H&K 25 Round HK MP5 .22LR Magazine - Black H&K 25 Round HK MP5 .22LR Magazine - Black

    H&K 25 Round HK MP5 .22LR Magazine - Black

    H&K Heckler & Koch

    $34.95
    HK MP5 .22 - 25 Round Magazine Each magazine offers a 25-round capacity and fits all HK, Walther, Umarex MP5 A5 & MP5 SD .22 rifles. Factory HK German manufactured magazines these are NOT aftermarket.  Compatible With: MP5 .22 MP5SD .22 Please...
    HKP-02296
    $34.95
    Qty in Cart: 0
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    $34.95
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  • HKP HK VP9 Optics Plate #2 RMR, Holosun HKP HK VP9 Optics Plate #2 RMR, Holosun

    HKP HK VP9 Optics Plate #2 RMR, Holosun

    HKP HK Parts

    $49.95
      HK 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...
    HKP-19564
    $49.95
    Qty in Cart: 0
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    $49.95
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  • H&K 10 Round HK VP9/P30 9mm Magazine - Black H&K 10 Round HK VP9/P30 9mm Magazine - Black

    H&K 10 Round HK VP9/P30 9mm Magazine - Black

    H&K Heckler & Koch

    $44.95
    HK 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
    Qty in Cart: 0
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    $44.95
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  • HKP HK P30L Gen 2 Rail Mount Compensator - Black HKP HK P30L Gen 2 Rail Mount Compensator - Black

    HKP HK P30L Gen 2 Rail Mount Compensator - Black

    HKP HK Parts

    $184.95
    HK P30L - Rail Mount Compensator - Gen 2 Crafted from aircraft-grade billet aluminum and finished in durable Cerakote. It has a sleek design that flows with the lines of the Koch P30L for a seamless addition. It has 5 sets of ports to significantly...
    HKP-19067
    $184.95
    Qty in Cart: 0
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    $184.95
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  • H&K Ejector Lever Spring H&K Ejector Lever Spring

    H&K Ejector Lever Spring

    H&K Heckler & Koch

    $6.95
    H&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
    Qty in Cart: 0
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    $6.95
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  • H&K HK USP/P2000 Extended Magazine Release H&K HK USP/P2000 Extended Magazine Release

    H&K HK USP/P2000 Extended Magazine Release

    H&K Heckler & Koch

    $19.95
    HK 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
    Qty in Cart: 0
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    $19.95
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  • H&K Sling Loop For Front Sight Tower

    H&K Sling Loop For Front Sight Tower

    H&K Heckler & Koch

    $9.95
    H&K Sling Loop For Front Sight Tower This HK OEM item is brand new and not surplus or used. This is a must-have item for all of your re-barrel jobs, or for when you need to mount a sling loop to an HK build. This item is offered at the best price in...
    HKP-00144
    $9.95
    Qty in Cart: 0
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    $9.95
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  • HKP MP5 Replacement Buffer for Folding Stock or End Cap HKP MP5 Replacement Buffer for Folding Stock or End Cap

    HKP MP5 Replacement Buffer for Folding Stock or End Cap

    HKP HK Parts

    $3.49
    HKP 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
    HKP-18735
    $3.49
    Qty in Cart: 0
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    $3.49
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  • Out Of Stock
    Mag-Grip MP5 & MP5K 9mm Dual Magazine Clamp Mag-Grip MP5 & MP5K 9mm Dual Magazine Clamp

    Mag-Grip MP5 & MP5K 9mm Dual Magazine Clamp

    $29.95
    Mag-Grip MP5 & MP5K 9mm Dual Magazine Clamp  The MP5 and MP5K magazine grip or dual magazine clamp fits all 9mm MP5 or MP5K curved magazines. This part holds two magazines together for ease of use and easy access to 2 magazines. It is made in...
    HKP-00084
    $29.95
    Qty in Cart: 0
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    $29.95
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  • H&K 15 Round HK VP9/P30 9mm Magazine - Black H&K 15 Round HK VP9/P30 9mm Magazine - Black

    H&K 15 Round HK VP9/P30 9mm Magazine - Black

    H&K Heckler & Koch

    $49.95
    HK VP9, VP9L & P30, P30L, P30S 9mm - 15 Round Magazine New HK German manufacture and factory fresh production. Each factory HK all-steel-bodied magazine holds 15 rounds of 9mm ammunition for use in all P30, P30L, P30S & HK VP9 9mm models...
    HKP-00305
    $49.95
    Qty in Cart: 0
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    $49.95
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  • H&K 17 Round HK VP9, HK P30 17 Round 9mm - Red Follower H&K 17 Round HK VP9, HK P30 17 Round 9mm - Red Follower

    H&K 17 Round HK VP9, HK P30 17 Round 9mm - Red Follower

    H&K Heckler & Koch

    $49.95
    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 the factory. Each factory HK all-steel bodied magazine...
    HKP-19627
    $49.95
    Qty in Cart: 0
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    $49.95
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  • HKP MP5, SP5, HK94 Wide Forearm HKP MP5, SP5, HK94 Wide Forearm

    HKP MP5, SP5, HK94 Wide Forearm

    HKP HK Parts

    $25.95
    HKP 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
    Qty in Cart: 0
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    $25.95
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  • H&K HK G3, HK 91 Grip for Metal Frames - OD Green - Surplus H&K HK G3, HK 91 Grip for Metal Frames - OD Green - Surplus

    H&K HK G3, HK 91 Grip for Metal Frames - OD Green - Surplus

    H&K Heckler & Koch

    $9.95
    HK German Green Plastic Grips For The HKG3,HK91 & HK93, HK33 Metal Grip Frames. 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. Fits all HK...
    HKP-16333
    $9.95
    Qty in Cart: 0
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    $9.95
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  • Out Of Stock
    Small Push Pin - Forearm & Lower Small Push Pin - Forearm & Lower

    Small Push Pin - Forearm & Lower

    USA

    $5.95
    HK 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
    $5.95
    Qty in Cart: 0
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    $5.95
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  • HK Pistol Trigger Return Spring Tool HK Pistol Trigger Return Spring Tool

    HK Pistol Trigger Return Spring Tool

    USA

    $16.95
    HK Trigger Return Spring ToolIt is no secret that the hardest spring to install in the HK series of handguns from the USP, USPC to the modern HK45, HK45C & P30 & VP9 series is the trigger return spring. In many cases, installing the spring...
    HKP-16031
    $16.95
    Qty in Cart: 0
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    $16.95
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  • H&K HK German Roll Pin

    H&K HK German Roll Pin

    H&K Heckler & Koch

    $2.95
    HK German Roll Pin German HK roll pin is made from a process using rolled spring steel. This results in longevity and more stable fitment.  HK suggests replacing the roll pin with a new one every time it is removed. Fits and retains the extractor,...
    HKP-01921
    $2.95
    Qty in Cart: 0
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    $2.95
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  • H&K HK .45 ACP Pistols Barrel O-Ring - Green H&K HK .45 ACP Pistols Barrel O-Ring - Green

    H&K HK .45 ACP Pistols Barrel O-Ring - Green

    H&K Heckler & Koch

    $4.95
    HK .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...
    HKP-01984
    $4.95
    Qty in Cart: 0
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    $4.95
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  • H&K 91/G3 (7.62x51 / .308) Slimline Forearm - Jungle Green - Used Good H&K 91/G3 (7.62x51 / .308) Slimline Forearm - Jungle Green - Used Good

    H&K 91/G3 (7.62x51 / .308) Slimline Forearm - Jungle Green - Used Good

    H&K Heckler & Koch

    $14.95
    Used German Military Surplus Jungle Green Slim Line 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. Conditions range from Good to Excellent shape. For the money these are a...
    HKP-16266
    $14.95
    Qty in Cart: 0
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    $14.95
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  • Heckler & Koch Decal Sticker - 5 pack Heckler & Koch Decal Sticker - 5 pack

    Heckler & Koch Decal Sticker - 5 pack

    H&K Heckler & Koch

    $0.00
    Factory 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
    Qty in Cart: 0
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    $0.00
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  • HKP Rear Sight Tool For Diopter Sights HKP Rear Sight Tool For Diopter Sights

    HKP Rear Sight Tool For Diopter Sights

    HKP HK Parts

    $29.95
    HK Diopter Rear Sight Tool - Military ContractDiopter 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
    Qty in Cart: 0
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    $29.95
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  • H&K 20 Round HK VP9, HK P30 9mm Complete Magazine - Black H&K 20 Round HK VP9, HK P30 9mm Complete Magazine - Black

    H&K 20 Round HK VP9, HK P30 9mm Complete Magazine - Black

    H&K Heckler & Koch

    $59.00
    HK VP9 &P30, P30L, P30S - 9mm - 20 Round Magazine CompleteNew HK German Manufactured & Factory Fresh Production. Each factory HK magazine holds 20 rounds for use in all VP9, P30, P30L, P30S 9mm Models. Each magazine is marked with the factory 20...
    HKP-18917
    $59.00
    Qty in Cart: 0
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    $59.00
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  • HKP HK 416, Colt M4 .22 Match Trigger Upgrade Spring Kit

    HKP HK 416, Colt M4 .22 Match Trigger Upgrade Spring Kit

    HKP HK Parts

    $17.49
    HK 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
    Qty in Cart: 0
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    $17.49
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  • H&K HK USP/P/45 Enhanced Match Flat Sear Spring H&K HK USP/P/45 Enhanced Match Flat Sear Spring

    H&K HK USP/P/45 Enhanced Match Flat Sear Spring

    H&K Heckler & Koch

    $9.95
    Enhanced 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
    Qty in Cart: 0
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    $9.95
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  • H&K Roller Retainer Spring - Action 3 H&K Roller Retainer Spring - Action 3

    H&K Roller Retainer Spring - Action 3

    H&K Heckler & Koch

    $6.74
    H&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
    Qty in Cart: 0
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    $6.74
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  • MFI HK MP5 .22 Scope Mount - Black MFI HK MP5 .22 Scope Mount - Black

    MFI HK MP5 .22 Scope Mount - Black

    MFI

    $109.95
    Low Profile Scope Mount For All HK MP5 .22's (HK, Walther, & Umarex) & ATI GSG-5 Pistols Or Rifles Just released the latest second-generation MFI Low Profile Scope mount for the Umarex HK MP5 & GSG-5 models. MFI scope mount offers the lowest...
    HKP-02389
    $109.95
    Qty in Cart: 0
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    $109.95
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  • H&K 15 Round HK VP9SK/P30SK 9mm Magazine - Black H&K 15 Round HK VP9SK/P30SK 9mm Magazine - Black

    H&K 15 Round HK VP9SK/P30SK 9mm Magazine - Black

    H&K Heckler & Koch

    $49.00
    HK VP9SK & P30SK 9mm - 15 Round MagazineNew German HK manufacture 15 Round 9mm P30SK, VP9SK mag. New factory fresh German HK manufacture.Fits all HK P30SK & VP9SK models. HK VP9SK HK P30SK
    HKP-18496
    $49.00
    Qty in Cart: 0
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    $49.00
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  • H&K 30 Round HK 416 .22LR Magazine - Black H&K 30 Round HK 416 .22LR Magazine - Black

    H&K 30 Round HK 416 .22LR Magazine - Black

    H&K Heckler & Koch

    $29.95
    HK, 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
    $29.95
    Qty in Cart: 0
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    $29.95
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  • MFI Ultra Low Profile Red Dot Mount - Aimpoint/Primary Arms/Vortex/Burris MFI Ultra Low Profile Red Dot Mount - Aimpoint/Primary Arms/Vortex/Burris

    MFI Ultra Low Profile Red Dot Mount - Aimpoint/Primary Arms/Vortex/Burris

    MFI

    $110.95
      MFI Ultra Low Profile Red Dot Mount - Aimpoint, RMR Style Red Dots The new MFI Ultra Low Profile Mount perfect for smaller red dot options The MFI ultra low profile scope mount offers the lowest profile of any HK scope mount on the planet. The MFI...
    HKP-17962
    $110.95
    Qty in Cart: 0
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    $110.95
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  • Black Black

    KCI 30 Round MP5 9mm Magazine

    KCI

    $39.95 - $44.95
    Korean 30 Round MP5, MP5K Magazine - GEN 2 - KCI USA Compatible With: HK MP5, HK94, MP5 SD, 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
    $39.95 - $44.95
    Qty in Cart: 0
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    $39.95 - $44.95
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