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 - HKP HK 23E/13E (7.62x51/.308) & (5.56/.223) Firing Pin - Titanium - HKP-17770
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    HK23E, HK13E Firing Pin - Titanium - US

    HKP HK Parts

    $49.95
    HK23E, MM23E, 13E Firing Pin - Titanium Grade 6 weapons grade titanium manufacture. Made in the USA. A must have upgrade to have on hand as the firing pin is one of the most abused components in the HK weapon system. Get the lightest, strongest firing...
    HKP-17770
    $49.95
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    $49.95
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  • New - HKP HK MP5 (.40 S&W) Locking Roller -2 - HKP-17563
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    HK MP5 Locking Roller -2 - .40 S&W

    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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    $11.95
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  • New - HKP HK MP5 (.40 S&W) Locking Roller +6 - HKP-17565
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    HK MP5 Locking Roller +6 - .40 S&W

    HKP HK Parts

    $11.95
    HK US MP540  Locking Roller, +6 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 to...
    HKP-17565
    $11.95
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    $11.95
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  • New - RCM HK33K (5.56/.223) Barrel - Threaded 15x1 - HKP-02319 HK33K Barrel - .556 / .223 - 12.7" - Threaded 15x1
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    HK33K Barrel - .556 / .223 - 12.7" - Threaded 15x1

    RCM

    $234.95
    RCM HK33K (5.56/.223) Barrel - Threaded 15x1 Enhance your HK33K with the RCM 12.7" barrel, crafted from cold hammer-forged steel. The nitride finish provides exceptional corrosion and wear resistance, and the fully fluted chamber meets stringent HK...
    HKP-02319
    $234.95
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    $234.95
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  • New - H&K MP5K/SP89/SP5K 9mm Cocking Tube Support Complete - HKP-00399
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    HK MP5K, SP89, SP5K Cocking Tube Support - 9mm - Complete

    H&K Heckler & Koch

    $123.99
    HK German MP5K, SP89, & SP5K Cocking Tube Support Complete - New Each support is complete with a detent and spring installed. These can also be used to replace the plastic or cheaply made steel or aluminum clone parts found in many clones and builds...
    HKP-00399
    $123.99
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    $123.99
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  • New - HKP Front Sight Tower Ambi Sling Attachment Weldment - HKP-17881 HK MP5, MP5K Sling Attachment Weldment - Ambi - Front End
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    HK MP5, MP5K Sling Attachment Weldment - Ambi - Front End

    HKP HK Parts

    $14.95
    HKP Front Sight Tower Ambi Sling Attachment Weldment Ambi sling loop that is welled and installed on all MP5F model front sight tower. A great upgrade for that custom build or for those that want to have the ability to have an ambidextrous sling loop at...
    HKP-17881
    $14.95
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    $14.95
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  • New - HKP (5.56/.223) Bore Cleaning Brush - HKP-03331
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    Barrel Bore Cleaning Brush - 5.56 / .223

    HKP HK Parts

    $1.95
    Bore Cleaning Brush For .223/556 Calibers  
    HKP-03331
    $1.95
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    $1.95
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  • On Sale
    HK MP5, SP5 Trigger Housing - 0,1,F Pictogram - Clipped and Pinned - Cerakote - BLEMISHED HK MP5, SP5 Trigger Housing - 0,1,F Pictogram - Clipped and Pinned - Cerakote - BLEMISHED
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    HK MP5, SP5 Trigger Housing - 0,1,F Pictogram - Clipped and Pinned - Cerakote - BLEMISHED

    H&K Heckler & Koch

    Now: $219.95
    Was: $299.95
    Heckler and Koch HK MP5, SP5 0,1,F Pictogram Trigger Housing - Clipped and Pinned - Cerakote - BLEMISHED POOR FINISH COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE...
    HKP-99411-M
    Now: $219.95
    Was: $299.95
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    Now: $219.95
    Was: $299.95
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  • On Sale
    Century Arms AP51 A3 Telescopic Stock - BLEMISHED Century Arms AP51 A3 Telescopic Stock - BLEMISHED
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    Century Arms AP51 A3 Telescopic Stock - BLEMISHED

    MKE

    Now: $327.95
    Was: $449.95
    MKE Century Arms AP51 A3 Telescopic Stock - BLEMISHED INSTALLATION MARKS COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Factory new MKE stock professionally...
    HKP-21926-B
    Now: $327.95
    Was: $449.95
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    Now: $327.95
    Was: $449.95
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  • Out Of Stock
    HK MP5, SP5 ACR Folding Stock With Direct Fit Adapter HK MP5, SP5 ACR Folding Stock With Direct Fit Adapter

    HK MP5, SP5 ACR Folding Stock With Direct Fit Adapter

    F5 MFG

    $229.95
    HK MP5/SP5 ACR Folding Stock w/Adapter Upgrade your MP5 platform with the F5-ACR Stock.  Precision machined from 6061 billet aluminum for unmatched durability. Built for law enforcement, personal defense, and enthusiasts, this stock is lightweight,...
    HKP-22253-M
    $229.95
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    $229.95
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  • Out Of Stock
    New - H&K HK 416/MR556 Adaptive Pistol Grip Panel Kit - HKP-21802 HK416, MR556, HK417, MR762 Pistol Grip Panel Kit

    HK416, MR556, HK417, MR762 Pistol Grip Panel Kit

    H&K Heckler & Koch

    $72.99
    HK Heckler and Koch's Adaptive Pistol Grip Panel Kit with small and large sizes. The standard HK grip comes fitted with medium sized removable grip panels.  This adaptive pistol grip kit supplies a full set of small and large interchangeable grip...
    HKP-21802
    $72.99
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    $72.99
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  • New - B&T HK MP5 Adapter for Folding Stock - HKP-21751 HK MP5 Adapter - Folding Stock
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    HK MP5 Adapter - Folding Stock

    B&T Brugger & Thomet

    $114.95
    B&T HK MP5 Adapter for Folding Stock Upgrade your MP5 platform with precision Swiss engineering. The Brügger & Thomet HK MP5 Adapter for Folding Stock is designed to provide a secure and reliable mounting interface for B&T’s...
    HKP-21751
    $114.95
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    $114.95
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