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, 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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  • Qty in Cart
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  • Subtotal
  • 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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  • 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

    $49.95
    HK 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
    Qty in Cart: 0
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    $49.95
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  • On Sale
    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

    Now: $69.95
    Was: $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
    Now: $69.95
    Was: $78.95
    Qty in Cart: 0
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    Now: $69.95
    Was: $78.95
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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

    $9.95
    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 as...
    HKP-18068
    $9.95
    Qty in Cart: 0
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    $9.95
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  • HKP HK UMP (.45 ACP) 25 Round Magazine HKP HK UMP (.45 ACP) 25 Round Magazine

    HKP HK UMP (.45 ACP) 25 Round Magazine

    HKP HK Parts

    $49.95
    HKP 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
    Qty in Cart: 0
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    $49.95
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  • FMP MP5, MP5K Extractor Spring FMP MP5, MP5K Extractor Spring

    FMP MP5, MP5K Extractor Spring

    FMP

    $4.95
    FMP 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
    Qty in Cart: 0
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    $4.95
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  • On Sale
    Zenith 30 Round HK MP5, MP5K 9mm Magazine Zenith 30 Round HK MP5, MP5K 9mm Magazine

    Zenith 30 Round HK MP5, MP5K 9mm Magazine

    Zenith

    Now: $29.95
    Was: $34.95
    30 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
    Now: $29.95
    Was: $34.95
    Qty in Cart: 0
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    Now: $29.95
    Was: $34.95
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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 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
    Qty in Cart: 0
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    $6.74
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  • HKP MP5K/SP89/SP5K Vertical Grip HKP MP5K/SP89/SP5K Vertical Grip

    HKP MP5K/SP89/SP5K 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.  Compatible With: MP5K, MP5K-PDW, SP89 & SP5K...
    HKP-16474
    $29.95
    Qty in Cart: 0
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    $29.95
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  • HKP MP5 & MP5K 9mm Dual Magazine Clamp HKP MP5 & MP5K 9mm Dual Magazine Clamp

    HKP MP5 & MP5K 9mm Dual Magazine Clamp

    HKP HK Parts

    $29.95
    HKP 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
    Qty in Cart: 0
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    $29.95
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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
    Fixed 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
    Qty in Cart: 0
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    $25.95
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  • H&K Small Push Pin - Forearm & Lower

    H&K Small Push Pin - Forearm & Lower

    H&K Heckler & Koch

    $8.95
    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
    $8.95
    Qty in Cart: 0
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    $8.95
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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
    H&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
    Qty in Cart: 0
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    $14.95
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  • On Sale
    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

    Now: $2.95
    Was: $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
    Now: $2.95
    Was: $6.74
    Qty in Cart: 0
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    Now: $2.95
    Was: $6.74
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  • On Sale
    H&K Ejector Lever Spring H&K Ejector Lever Spring

    H&K Ejector Lever Spring

    H&K Heckler & Koch

    Now: $4.95
    Was: $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
    Now: $4.95
    Was: $6.95
    Qty in Cart: 0
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    Now: $4.95
    Was: $6.95
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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

    $16.95
    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
    $16.95
    Qty in Cart: 0
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    $16.95
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  • On Sale
    HKP MP5, SP5, HK94 Wide Forearm HKP MP5, SP5, HK94 Wide Forearm

    HKP MP5, SP5, HK94 Wide Forearm

    HKP HK Parts

    Now: $14.95
    Was: $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
    Now: $14.95
    Was: $25.95
    Qty in Cart: 0
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    Now: $14.95
    Was: $25.95
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  • On Sale
    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

    Now: $29.95
    Was: $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 steel,...
    HKP-19564
    Now: $29.95
    Was: $49.95
    Qty in Cart: 0
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    Now: $29.95
    Was: $49.95
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  • On Sale
    KCI 30 Round MP5 9mm Magazine KCI 30 Round MP5 9mm Magazine

    KCI 30 Round MP5 9mm Magazine

    KCI

    $29.99 - $35.99
    Korean 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
    $29.99 - $35.99
    Qty in Cart: 0
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    $29.99 - $35.99
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  • H&K 10 Round HK VP9/P30 9mm Magazine H&K 10 Round HK VP9/P30 9mm Magazine

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

    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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  • On Sale
    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

    Now: $24.95
    Was: $34.95
    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
    Now: $24.95
    Was: $34.95
    Qty in Cart: 0
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    Now: $24.95
    Was: $34.95
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  • On Sale
    HKP G3/33/91/93 All Steel Folding Bipod HKP G3/33/91/93 All Steel Folding Bipod

    HKP G3/33/91/93 All Steel Folding Bipod

    HKP HK Parts

    Now: $59.95
    Was: $87.95
    HKP 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-20834
    Now: $59.95
    Was: $87.95
    Qty in Cart: 0
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    Now: $59.95
    Was: $87.95
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  • HKP 1st Gen Roller Retainer Plate To Spring Upgrade

    HKP 1st Gen Roller Retainer Plate To Spring Upgrade

    HKP HK Parts

    $9.95
    HKP 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
    Qty in Cart: 0
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    $9.95
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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   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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  • Out Of Stock
    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

    $29.95
    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
    $29.95
    Qty in Cart: 0
    Quantity:
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    $29.95
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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 made of the same material...
    HKP-01984
    $4.95
    Qty in Cart: 0
    Quantity:
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    $4.95
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  • On Sale
    HKP HK P30L 9mm/.40 S&W Gen 2 Rail Mount Compensator HKP HK P30L 9mm/.40 S&W Gen 2 Rail Mount Compensator

    HKP HK P30L 9mm/.40 S&W Gen 2 Rail Mount Compensator

    HKP HK Parts

    Now: $114.95
    Was: $189.95
    HKP  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
    Now: $114.95
    Was: $189.95
    Qty in Cart: 0
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    Now: $114.95
    Was: $189.95
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  • HK Pistol Trigger Return Spring Tool HK Pistol Trigger Return Spring Tool

    HK Pistol Trigger Return Spring Tool

    USA

    $17.95
    HK 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
    Qty in Cart: 0
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    $17.95
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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
    H&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
    Qty in Cart: 0
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    $49.95
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  • HKP Small Push Pin - Forearm & Lower HKP Small Push Pin - Forearm & Lower

    HKP Small Push Pin - Forearm & Lower

    USA

    $6.95
    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
    $6.95
    Qty in Cart: 0
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    $6.95
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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
    Quantity:
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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 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
    Qty in Cart: 0
    Quantity:
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    $29.95
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  • H&K 9mm Ejector Lever - 3rd Gen H&K 9mm Ejector Lever - 3rd Gen

    H&K 9mm Ejector Lever - 3rd Gen

    H&K Heckler & Koch

    $69.95
    H&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
    Qty in Cart: 0
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    $69.95
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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
    H&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
    Qty in Cart: 0
    Quantity:
    Price:
    $9.95
    Subtotal:
  • On Sale
    BDM 50 Round HK MP5 .22LR Magazine Drum - Translucent BDM 50 Round HK MP5 .22LR Magazine Drum - Translucent

    BDM 50 Round HK MP5 .22LR Magazine Drum - Translucent

    BDM Black Dog Machine

    Now: $79.95
    Was: $99.95
    HK 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-16235
    Now: $79.95
    Was: $99.95
    Qty in Cart: 0
    Quantity:
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    Now: $79.95
    Was: $99.95
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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 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
    Qty in Cart: 0
    Quantity:
    Price:
    $2.95
    Subtotal:
  • 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
    Quantity:
    Price:
    $17.49
    Subtotal:
  • On Sale
    HKP HK MR556/HK416 FFRS Retaining Spring

    HKP HK MR556/HK416 FFRS Retaining Spring

    HKP HK Parts

    Now: $2.49
    Was: $4.99
    HKP 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
    Now: $2.49
    Was: $4.99
    Qty in Cart: 0
    Quantity:
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    Now: $2.49
    Was: $4.99
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  • On Sale
    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

    Now: $2.49
    Was: $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 (NOT compatible with MP5 .22 LR)
    HKP-18735
    Now: $2.49
    Was: $3.49
    Qty in Cart: 0
    Quantity:
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    Now: $2.49
    Was: $3.49
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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
    Quantity:
    Price:
    $9.95
    Subtotal:
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