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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  • Out Of Stock
    New - HK G36C Forearm w/ Tri Rail Set Included - HKP-00618 HK G36C Handguard w/ Tri Rail Set Included

    HK G36C Handguard w/ Tri Rail Set Included

    H&K Heckler & Koch

    $199.95
    HK G36C Tri-Rail ForearmNew HK German Factory G36C Forearm with both left & right side rails, bottom rail, and hand stop included. This new style forearm also comes with the heat shield installed. Forearm is made in Germany. HK G36C SL8 to G36...
    HKP-00618
    $199.95
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    $199.95
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  • New - JMAC Customs BDS-37 Blast Diversion Shield - Bravo with HD 3-Lug Adapter - HKP-20521 Blast Diversion Shield - BDS-37 - Bravo with HD 3-Lug Adapter
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    Blast Diversion Shield - BDS-37 - Bravo with HD 3-Lug Adapter

    JMAC Customs

    $229.95
    JMAC Customs BDS-37 Blast Diversion Shield - Bravo with HD 3-Lug Adapter The YHM-2050 HD (heavy duty) 3-Lug Adapter is a quick-attach mounting option designed to provide added strength and longevity to your 3-Lug equipped firearm. This fully...
    HKP-20521
    $229.95
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    $229.95
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  • New - Lee Sporting LS5 HK MP5 Complete Trigger Group Flat Trigger - Push Pin - HKP-20482 HK MP5 Trigger Group - Flat Trigger - Push Pin
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    HK MP5 Trigger Group - Flat Trigger - Push Pin

    Lee Sporting / Magpul

    $549.95
    Lee Sporting Complete Trigger Group - MP5 Push Pin - Flat Trigger The LS5 trigger group from Lee Sporting is a definitive ergonomic upgrade over the OEM grip, boasting a weight reduction of 4.3oz compared to the original. This billet aluminum trigger...
    HKP-20482
    $549.95
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    $549.95
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  • New - MP5 to MP5K Housing Conversion Service - HKP-20473 MP5 to MP5K Housing Conversion Service
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    MP5 to MP5K Housing Conversion Service

    USA

    $149.95
    MP5 to MP5K Housing Conversion Service At HK Parts we are now offering our own HK trigger housing conversion service. No one does a better job with quicker turn around then we do. This conversion is the best option for those that want to install hard to...
    HKP-20473
    $149.95
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  • New - HK MP5K Side Reinforcement Tabs - HKP-20168 HK MP5K Side Reinforcement Tabs
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    HK MP5K Side Reinforcement Tabs

    USA

    $14.95
    HK MP5K Side Reinforcement Tabs
    HKP-20168
    $14.95
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    $14.95
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  • Out Of Stock
    New - JMAC Customs SS-8 w/ 1913 Folding Mech - HKP-20146 Folding Stock - SS-8 with 1913 Folding Mech

    Folding Stock - SS-8 with 1913 Folding Mech

    JMAC Customs

    $284.99
    JMAC Customs SS-8 Folding Stock w/1913 Folding Mech Skeleton stock 8" with 1913 folding mech (not assembled) 2x integrated QD sling socket 8" length Drilled and tapped for optional cheek risers (will be available in the future) Compatible with SIG...
    HKP-20146
    $284.99
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    $284.99
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  • Used - Swiss Military Single Point Sling - OD Green - Used - HKP-19794 Swiss Military Single Point Sling - OD Green - Used
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    Swiss Military Single Point Sling - OD Green - Used

    Other

    $34.95
    Swiss Military Single Point Sling in OD Green - USED  
    HKP-19794
    $34.95
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    $34.95
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  • New - H&K HK USC, UMP German Polymer Receiver Optic Rail - HKP-19616 HK USC, UMP Optic Rail - Receiver - Polymer
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    HK USC, UMP Optic Rail - Receiver - Polymer

    H&K Heckler & Koch

    $116.95
    H&K HK USC, UMP German Polymer Receiver Optic Rail German HK USC, UMP polymer top Receiver Rail with mounting hardware. Includes: Factory HK rail 2 mounting screws Compatible With: HK German spec UMP USC upper receivers
    HKP-19616
    $116.95
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  • New - Bore Boss Pull-Through Bore Cleaner - .40/.41 - HKP-19411 Bore Boss Pull-Through Bore Cleaner - .40 S&W / .41
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    Bore Boss Pull-Through Bore Cleaner - .40 S&W / .41

    Real Avid

    $10.95
    Real Avid Bore Boss Pull-Through Bore Cleaner - .40/.41 From the barrel of innovation comes the ultra-compact Bore Boss, the first-ever self-storing, easy-feeding, clean-pulling, field-ready, hassle-free, pure-genius bore cleaner. The single-piece cable...
    HKP-19411
    $10.95
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    $10.95
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  • New - H&K UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Notched Disk - Safe/Semi - HKP-16361 HK UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Notched Disk - Safe/Semi
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    HK UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Notched Disk - Safe/Semi

    H&K Heckler & Koch

    $14.95
    HK Ratched Wheel, Notched Disk G36, SL8 0,1 (Safe & Fire) Only Compatible With: 0,1 or S,F only: HK UMP HK USC HK G36 HK SL8
    HKP-16361
    $14.95
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    $14.95
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  • New - HKP HK MP5 (.40 S&W) Locking Roller -2 - HKP-17563
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    HKP HK MP5 (.40 S&W) Locking Roller -2

    HKP HK Parts

    $11.95
    HK US MP540 Undersized Locking Roller, -2 The proper roller size is essential for proper headspacing of bolt gap. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the size you need...
    HKP-17563
    $11.95
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  • Out Of Stock
    New - H&K Central Buttstock Section - HK Green - HKP-16987 HK Central Buttstock Section - HK Green

    HK Central Buttstock Section - HK Green

    H&K Heckler & Koch

    $34.95
    H&K Central Buttstock Section - HK Green This stock section is no longer being manufactured as the G3 and HK91 are out of production.  PLEASE NOTE: These units have handling marks and the price has been set accordingly.
    HKP-16987
    $34.95
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