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 HK MR556/416 Bolt Catch - HKP-02542 HK416, MR556 Bolt Catch
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    HK416, MR556 Bolt Catch

    H&K Heckler & Koch

    $59.95
    Heckler and Koch HK MR556 and HK416 Bolt Catch New HK German manufacture.  Compatible With: HK416, MR556
    HKP-02542
    $59.95
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    $59.95
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  • New - H&K UMP (.40 S&W) 30 Round Magazine Spring - HKP-02742
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    HK UMP Magazine Spring - .40 S&W - 30 Round

    H&K Heckler & Koch

    $8.95
    HK UMP .40 30 Round Magazine Spring  Perfect for spares and to have on hand as these are consumable high-wear items. Compatible With: HK UMP .40  
    HKP-02742
    $8.95
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    $8.95
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  • New - H&K (5.56/.223) Chamber Flute Brush - HKP-00464
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    Barrel Chamber Flute Cleaning Brush - 5.56 / .223

    H&K Heckler & Koch

    $29.95
    New HK German .223/5.56 Chamber Flute Cleaning Brush This item is ideal to have on hand for cleaning the flutes of the barrel. The flutes have to remain clean for the rounds to be extracted properly. 
    HKP-00464
    $29.95
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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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    $159.95
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  • New - H&K MP5K/SP89/SP5K 9mm End Cap - HKP-00394 HK MP5K, SP89, SP5K End Cap with Sling Swivel - 9mm - H&K
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    HK MP5K, SP89, SP5K End Cap with Sling Swivel - 9mm - H&K

    H&K Heckler & Koch

    $99.95
    HK Factory German MP5K, SP-89, & SP5K End Cap With Sling Swivel Each pistol end cap is OEM HK German MP5K and MP5K-N and has the HK German factory buffer.  Compatible With: MP5K SP89 SP5K MP5K-N MP5K-PDW MP5K Clone Or Other Custom Builds
    HKP-00394
    $99.95
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    $99.95
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  • New - HKP HK UMP/USC & G36 Flat Trigger - HKP-20766-M HK UMP, USC, G36 Flat Trigger
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    HK UMP, USC, G36 Flat Trigger

    HKP HK Parts

    $99.95
    HKP HK UMP/USC & G36 Flat Trigger Our flat trigger has spaced out serrations at the face of the trigger for a superior grip. Chamfered edges prevent the trigger face serrations from cutting into the operator's hands over prolonged range sessions...
    HKP-20766-M
    $99.95
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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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    $34.95
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  • New - HK .308 Rifles Clubfoot Stock with Enhanced Heavy Buffer - HKP-20068 HK91, G3 Clubfoot Stock with Enhanced Heavy Buffer
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    HK91, G3 Clubfoot Stock with Enhanced Heavy Buffer

    Michaels Machines

    $429.95
    US Michaels Machines Clubfoot Stock for HK G3, HK91, PTR-91, and Clones U.S clubfoot stock comes fully assembled and ready to drop onto your HK G3, HK91, PTR or other HK style firearm. Enhanced heavy buffer installed for optimum performance. The enhanced...
    HKP-20068
    $429.95
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    $429.95
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  • New - H&K HK MR556/MR762/416/417 V1 Battle Grip - Black - HKP-01023
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    HK416, MR556, HK417, MR762 Pistol Grip - V1

    H&K Heckler & Koch

    $79.95
    H&K 416/417 & MR556/762 V1 Battle Grip - Black This is a great upgrade for any AR15, M16/416 platform. New factory German HK manufacture. Compatible With: HK 416/MR556 HK 417/MR762 HK M27 HK G28 AR-15, M4, & M16 Platforms
    HKP-01023
    $79.95
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    $79.95
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  • New - H&K HK MR556/416 Upper Receiver Threaded Piston Guide - HKP-02640
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    HK416, MR556 Piston Guide - Threaded - Upper Receiver

    H&K Heckler & Koch

    $19.95
    Heckler and Koch Upper Receiver Threaded Piston Guide for HK MR556 and HK416 Compatible With: HK416, MR556 M27
    HKP-02640
    $19.95
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  • New - GSG9 HK G36C/G36K Gas Piston - HKP-18253 HK G36C, G36K Gas Piston - US
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    HK G36C, G36K Gas Piston - US

    GSG9

    $74.95
    GSG9 complete gas piston for HK G36C and G36K - US made This is a popular part for those upgrading to an HK SL8 to HK G36K or HK36C barrel length. Each piston counts as one 922r compliant part. Made in the USA. Features: New USA manufactured gas piston...
    HKP-18253
    $74.95
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  • Used - H&K 91/G3 (7.62x51/.308) Rear Sight Drum - Used - HKP-18093
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    HK91, G3 Rear Sight Drum - Used

    H&K Heckler & Koch

    $4.95
    HK German Rear Sight Drum For .308/7.62 - Used Used surplus genuine Heckler & Koch German manufactured product. Rare and hard to find. Most come in good shape but could use a good refinish. Used and range from good - exc shape. Compatible With: HK...
    HKP-18093
    $4.95
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    $4.95
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