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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  • On Sale
    New - JMAC HK G36/HK33 Flash Hider KeyMount (KeyMicro) - Threaded 15x1 - HKP-21255 JMAC HK G36/HK33 Flash Hider KeyMount (KeyMicro) - Threaded 15x1
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    JMAC HK G36/HK33 Flash Hider KeyMount (KeyMicro) - Threaded 15x1

    JMAC Customs

    Now: $87.98
    Was: $109.95
    JMAC HK G36/HK33 (5.56/.223) Flash Hider KeyMount (KeyMicro) - Threaded 15x1 In order to use this device with a suppressor it must be installed by a professional to ensure it is properly mounted and aligned. Do NOT shoot without checking alignment with...
    HKP-21255
    Now: $87.98
    Was: $109.95
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  • New - Franklin Armory - BFSIII MP5 – Binary Trigger Group – SEF Navy Housing - HKP-19506-M HK MP5, SP5 Binary Trigger Group – SEF Navy - BFSIII - 9mm
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    HK MP5, SP5 Binary Trigger Group – SEF Navy - BFSIII - 9mm

    FA Franklin Armory

    $899.95
    Franklin Armory - BFSIII HK-C1 – Binary Trigger Group – SEF Navy Housing SEF Navy style- HK binary trigger group  Binary triggers count as 4 922r compliant components. The components that count towards 922r compliance include the trigger...
    HKP-19506-M
    $899.95
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    $899.95
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  • New - HKP HK MP5 9mm Receiver Flat - HKP-20921 HK MP5 Receiver Flat - 9mm
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    HK MP5 Receiver Flat - 9mm

    HKP HK Parts

    $189.95
    HKP HK MP5 9mm Receiver Flat New MP5 receiver flat made by the original German tool and die maker of the LSC receiver flat utilizing factory original German prints and specifications. The creator of our receiver flat has been regarded as the premier flat...
    HKP-20921
    $189.95
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    $189.95
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  • New - HK UMP & G36 Pistol Grip Storage Insert - HKP-20176 HK UMP, G36 Pistol Grip Storage Insert
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    HK UMP, G36 Pistol Grip Storage Insert

    USA

    $16.95
    HK UMP & G36 Pistol Grip Storage Insert G36 & UMP pistol grip insert for all G36 & UMP lower housings. This is the piece that locks into place and fits in the bottom of the handle itself. This is a perfect storage location for paperwork,...
    HKP-20176
    $16.95
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    $16.95
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  • New - H&K HK MR556/416 A5 Ambi Selector Lever Set Complete - Black - HKP-19375 HK416A5, MR556 Ambi Selector Lever Set Complete
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    HK416A5, MR556 Ambi Selector Lever Set Complete

    H&K Heckler & Koch

    $179.95
    H&K HK MR556/416 A5 Ambi Selector Lever Set Complete New HK German manufacture. Complete kit to upgrade the selector lever set on the MR556 to the newer HK 416A5 semi style of levers. A drop in upgrade for the MR556 & CR556. Includes: HK 416 A5...
    HKP-19375
    $179.95
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    $179.95
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  • New - H&K HK MR762/417/G28 Slim Line Stock - RAL 8K - HKP-17136 HK417, MR762, G28 Stock - Slim Line - RAL8000
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    HK417, MR762, G28 Stock - Slim Line - RAL8000

    H&K Heckler & Koch

    $145.95
    H&K HK MR762/417/G28 Slim Line Stock - RAL 8K New from HK Germany the slim line retractable stock fits all MR762, HK 417 buffer tubes. Marked with the HK logo and issued on specialized HK 417, MR762 rifles. Compatible With: HK MR762 HK 417 HK...
    HKP-17136
    $145.95
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    $145.95
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  • On Sale
    New - HKP .45 ACP 4 Prong Pistol Flash Hider - Threaded .578x28 RH - HKP-02188 HKP .45 ACP 4 Prong Pistol Flash Hider - Threaded .578x28 RH
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    HKP .45 ACP 4 Prong Pistol Flash Hider - Threaded .578x28 RH

    USA

    Now: $47.95
    Was: $74.95
    HKP .45 ACP 4 Prong Pistol Flash Hider - Threaded .578x28 RH This flash hider adds a neat look & feel that provides outstanding flash hiding capabilities. Perfect for adding a unique look to your .45 ACP. Made in the USA, each flash hider is made of...
    HKP-02188
    Now: $47.95
    Was: $74.95
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    Now: $47.95
    Was: $74.95
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  • New - H&K 33/91/G3 Complete Triple Frame Front Sight Tower - HKP-18777 HK33, HK91, G3 Complete Triple Frame Front Sight Tower
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    HK33, HK91, G3 Complete Triple Frame Front Sight Tower

    H&K Heckler & Koch

    $29.95
    NEW HK German Front Sight Tower Triple Frame G3 triple frame in. Comes complete with sight blade and roll pin. Compatible With: HK G3 HK G3K HK 93 HK 33
    HKP-18777
    $29.95
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    $29.95
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  • New - HKP MP5K 9mm Trunnion - HKP-17964 HK MP5K Trunnion - 9mm
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    HK MP5K Trunnion - 9mm

    HKP HK Parts

    $57.95
    HK MP5K Trunnion - USA US made to exact factory HK specifications for the HK MP5K type builds. Machined completely from ordnance grade steel and heat treated to factory specs. These are the best USA made trunnions on the market. Machined to HK spec...
    HKP-17964
    $57.95
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    $57.95
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  • New - HKP MP5K/SP89/SP5K 9mm AR Brace/Stock Adapter - QD Sling Attachment - HKP-18796 HK MP5K, SP89, SP5K Stock or Brace Adapter - AR - QD Sling Attachment - 9mm
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    HK MP5K, SP89, SP5K Stock or Brace Adapter - AR - QD Sling Attachment - 9mm

    HKP HK Parts

    $114.95
    HKP MP5K/SP89/SP5K 9mm AR Brace/Stock Adapter - QD Sling Attachment Each AR stock, brace adapter is made from a solid billet of CNC machined aircraft grade aluminum with QD Sling Attachment Points. Properly buffered with factory correct "H" buffers to...
    HKP-18796
    $114.95
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    $114.95
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  • Used - H&K HK91, G3, PTR Parkerized Backplate & Recoil Rod Assembly - Parkerized - HKP-19692 HK91, G3, PTR Backplate, Recoil Rod Assembly - Parkerized
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    HK91, G3, PTR Backplate, Recoil Rod Assembly - Parkerized

    H&K Heckler & Koch

    $34.95
    Parkerized Backplate - HK91, G3, PTR Surplus German HK backplate that has been refinished and reparkerized. 
    HKP-19692
    $34.95
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    $34.95
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  • New - H&K HK MR556/MR762/416 Extractor Spring Buffer - HKP-00051
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    HK416, MR556, MR762 Extractor Spring Buffer

    H&K Heckler & Koch

    $14.95
    H&K HK MR556/MR762/416 Extractor Spring Buffer This buffer fits inside the extractor spring in the extractor pocked of the bolt. This item is a high wear item and a spare would be highly advised. Compatible With: HK MR556 HK 416 HK MR762
    HKP-00051
    $14.95
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    $14.95
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