HK Rifle / SMG Parts

HK Rifle / SMG Parts

Elevate Your HK Rifle with Premium Parts – MP5, HK416, SP5, and More!

Enhance your HK rifle with top-notch parts and accessories. From HK MP5 and HK MP5K to HK SP5 and HK UMP or HK USC, we offer a vast selection. Discover high-quality magazines, binary triggers, stocks, grips, barrels, handguards, sights, and more for your firearm. Whether you own an HK416, HK SP5K, HK G36, or HK MP5 22, we have the Heckler and Koch rifle parts you've been looking for. Shop now to upgrade your rifle to perfection.

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  • New - H&K MP5K 9mm SEF Navy Style Trigger Housing - Push Pin - HKP-02463 HK MP5K 9mm SEF Navy Style Trigger Housing - Push Pin
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    HK MP5K 9mm SEF Navy Style Trigger Housing - Push Pin

    H&K Heckler & Koch

    $159.95
    H&K MP5K 9mm SEF Navy Style Trigger Housing - Push Pin HK German factory SEF grip frame that has been cut to MP5K factory German specs. This style of housing is for push-pin firearms that do not require clipped and pinned housing...
    HKP-02463
    $159.95
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  • New - H&K Cocking Tube End Cap Spring - HKP-17980
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    HK MP5, HK90 Series Cocking Tube End Cap Spring

    H&K Heckler & Koch

    $4.95
    H&K Cocking Tube End Cap Spring Fits all German, Contract & US made cocking tube end caps. A great spare to have on hand as this part can become worn and be lost. The cocking tube end cap spring applies pressure to the cocking tube end cap/dust...
    HKP-17980
    $4.95
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    $4.95
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  • New - H&K Extended Right Side Ambidextrous Selector Lever - HKP-18875 H&K Extended Right Side Ambidextrous Selector Lever H&K Heckler & Koch HKP-18875
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    HK Extended Right Side Ambidextrous Selector Lever

    H&K Heckler & Koch

    $59.95
    HK German Right Side Ambidextrous EXTENDED (ESSL) Lever New German HK extended selector lever for the right side of all ambidextrous trigger packs. Works with all ambi left side HK selector levers. Compatible With: MP5, 94 MP5 clone and custom...
    HKP-18875
    $59.95
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    $59.95
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  • HK MP5K, AP5P OEM Picatinny Rail MKE HKP-22334 HK MP5K, AP5P OEM Picatinny Rail MKE HKP-22334
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    HK MP5, MP5K, AP5-P Optic Mount - Picatinny

    MKE

    $49.95
    MKE HK MP5K, AP5P OEM Picatinny Optic Rail MKE Picatinny optic rail for the MP5K platform.  OEM part for the Century AP5-P and AP5-M.  This rail is the K specific length but is compatible with full size MP5 guns as well. Compatible With: HK...
    HKP-22334
    $49.95
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  • New - Nefarious Arms HK G36/SL8/HK 416/MR556 Gas Piston - HKP-21364 HK416, MR556, G36, SL8 Gas Piston
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    HK416, MR556, G36, SL8 Gas Piston

    Nefarious Arms

    $74.95
    Nefarious Arms Gas Piston for HK G36, HK SL8, HK416 and HK MR556 A great spare, upgrade, or replacement part for your HK. Includes 3 piston rings for a complete drop in replacement part. TiN coated for corrosion resistance.  Compatible...
    HKP-21364
    $74.95
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  • New - HKP HK MP5K Vertical Grip - OD Green - HKP-20592 HK MP5K Vertical Foregrip - OD Green
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    HK MP5K Vertical Foregrip - OD Green

    HKP HK Parts

    $34.95
    MP5K Vertical Grip O.D Green - USA New OD green MP5K K-Grip handguard for MP5K and the ever popular MP5K-Reverse stretch models. Now you can further customize your MP5K and SP5K with this new color grip and, best of all, it counts as 1 U.S compliant part...
    HKP-20592
    $34.95
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  • On Sale
    New - HKP Linear Compensator - Threaded 5/8x24 RH - (5.56 & .308) - HKP-19338 HK Linear Compensator - Threaded 5/8x24 RH - 5.56 and .308
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    HK Linear Compensator - Threaded 5/8x24 RH - 5.56 and .308

    HKP HK Parts

    Now: $87.95
    Was: $149.95
    HKP (5.56/.223) and (7.62x51/.308) Linear Compensator - Threaded 5/8x24 RH Linear compensators give you the best of both worlds. Remove the outer blast shield for standard compensator and muzzle break functionality. Or, keep it on as a courtesy to the...
    HKP-19338
    Now: $87.95
    Was: $149.95
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  • New - H&K HK /MR556416 A5 Ambidextrous Complete Selector Lever Set - RAL 8K - HKP-17603 HK416A5, MR556 Selector Lever Set, Complete - Ambi - RAL8000
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    HK416A5, MR556 Selector Lever Set, Complete - Ambi - RAL8000

    H&K Heckler & Koch

    $189.95
    Heckler and Koch  Ambidextrous Selector Lever Set Complete for HK416A5 SEMI and HK MR556 - RAL 8000 New HK German manufacture. Complete kit to upgrade the selector lever set on the HK MR556 to the newer HK416A5 semi style of levers...
    HKP-17603
    $189.95
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  • Out Of Stock
    New - H&K HK MR556/416 Ejector Port Cover Pin - HKP-02661

    HK416, MR556 Ejector Port Cover Pin

    H&K Heckler & Koch

    $19.95
    Heckler and Koch Ejector Port Cover Axle Pin for HK416 and HK MR556 Compatible With: HK416, MR556
    HKP-02661
    $19.95
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  • New - H&K 91/G3/MSG90 (7.62x51/.308) 2x20 Round Aluminum Mags W/ Cloth Mag Pouch - Flectarn - HKP-14550 HK91, G3, PTR TWO Magazines with Pouch - 20 Round
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    HK91, G3, PTR TWO Magazines with Pouch - 20 Round

    H&K Heckler & Koch

    $49.95
    2x20 Round Like New Aluminum Mags W/ New Cloth Mag Pouch - Flectarn Compatible With: HK 91 HK G3 HK PSG-1 HK MSG-90 PTR-91 Vector 51 Century HK 308 clones Other custom HK91/G3 style builds or custom clones
    HKP-14550
    $49.95
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  • New - HKP SEF Skeletonized Franklin Armory Binary Aluminum Selectors - HKP-20526 HK SEF Skeletonized Binary Aluminum Selectors
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    HK SEF Skeletonized Binary Aluminum Selectors

    HKP HK Parts

    $69.95
    HK Selector Lever Set for BFSIII HK Binary Trigger Pack - SEF Grip Frames - Aluminum Skeletonized Our new selector lever set was modeled after the HK style selector lever for the Franklin Armory trigger packs.   With our new skeletonized selector...
    HKP-20526
    $69.95
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    $69.95
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  • New - HK G36, HK SL8 Side Rail Factory HK - Black - HKP-01962 HK G36, HK SL8 Side Rail Factory HK
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    HK G36, HK SL8 Side Rail Factory HK

    H&K Heckler & Koch

    $67.95
    HK Factory German G36 & SL8 Side Rail With Screws Up to two side rails can be used on a G36 UMP, one for each of the sides. Made from hard coat anodized aluminum. Compatible With: SL8 full size G36 full size
    HKP-01962
    $67.95
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