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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  • HK417, MR762 Ejection Port Cover
New - H&K HK MR762/417 Ejection Port Cover - HKP-16598
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    HK417, MR762 Ejection Port Cover

    H&K Heckler & Koch

    $42.95
    H&K HK MR762/417 Ejection Port Cover New HK German polymer .308 style MR762, HK 417 & G28 firearms. Compatible With: HK MR762 HK 417 HK G28 Other HK Spec .308 firearms
    HKP-16598-M
    $42.95
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    $42.95
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  • On Sale
    New - HK 416 Rail Sling Adapter - HKP-02693 HK416, MR556 Rail Sling Adapter
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    HK416, MR556 Rail Sling Adapter

    USA

    Now: $19.95
    Was: $29.95
    HK416 Rail Sling Adapter
    HKP-02693
    Now: $19.95
    Was: $29.95
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    Now: $19.95
    Was: $29.95
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  • New - H&K PSG1 Stock Rear Spacer Tube - HKP-16986 HK PSG1 Stock Spacer Tube
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    HK PSG1 Stock Spacer Tube

    H&K Heckler & Koch

    $27.95
    H&K PSG1 Stock Spacer Tube This is the longer of the two bars that goes towards the rear of the stock. No longer in production.
    HKP-16986
    $27.95
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  • New - H&K HK MR556/416 Front Sight Roll Pin - HKP-02659
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    HK416, MR556 Front Sight Roll Pin

    H&K Heckler & Koch

    $4.95
    Heckler and Koch Front Sight Roll Pin for HK416 and HK MR556
    HKP-02659
    $4.95
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    $4.95
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  • Out Of Stock
    New - H&K G36 (5.56/.223) Burst Disconnector Spring - HKP-12703

    HK G36 Disconnector Spring - 2 Round Burst

    H&K Heckler & Koch

    $9.95
    HK German G36 2 Round Burst Disconnector Spring For All HK Burst G36 Burst Lowers
    HKP-12703
    $9.95
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    $9.95
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  • New - HDPS HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block C - HKP-02613 HK UMP, USC Stock Block C
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    HK UMP, USC Stock Block C

    HDPS

    $159.95
    HDPS HK UMP & USC Stock Block C Each unit comes with a new push-pin design. This is the part to use with the ACE hinge part number FSM-TB (push button folding stock) and non-folding push bottom (pig nose). This is just...
    HKP-02613
    $159.95
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    $159.95
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  • New - HK USC (.45 ACP) USC to UMP Conversion ACR Stock Block - HKP-17357 HK USC to UMP Conversion ACR Stock Block
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    HK USC to UMP Conversion ACR Stock Block

    USA

    $139.95
    HK USC To ACR Stock Adapter A new product that allows you to add the widely popular Remington ACR folding, adjustable stock to your USC-UMP conversion. This offering is for the stock block and hardware to attach your ACR stock for your HK USC when doing...
    HKP-17357
    $139.95
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  • New - H&K USC/SL8 (.45 ACP/5.56/.223) Hammer - HKP-16352 HK USC, SL8 Hammer
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    HK USC, SL8 Hammer

    H&K Heckler & Koch

    $98.95
    H&K USC/SL8 (.45 ACP/5.56/.223) Hammer Compatible With: HK USC .45 ACP HK SL8 .223/5.56
    HKP-16352
    $98.95
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  • Out Of Stock
    New - HK UMP (.45 ACP) Bolt Group - HKP-18751 HK UMP45 Bolt Group

    HK UMP45 Bolt Group

    $369.95
    HK UMP .45 Tungsten Filled Semi Auto Bolt Group Complete. The semi auto bolt group is required for HK USC to HK UMP caliber conversions. Comes complete less the recoil assembly. Specifications: Tungsten filled Heat treated Parkerized
    HKP-18751
    $369.95
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    $369.95
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  • New - H&K HK23E Recoil Spring - 5.56/.223 - HKP-02001
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    HK23E Recoil Spring - 5.56/.223

    H&K Heckler & Koch

    $79.95
    New German HK Factory HK23E Recoil Spring  
    HKP-02001
    $79.95
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  • New - HKP HK 91/G3 (7.62x51/.308) Ambidextrous Trigger Pack (0,1) - Match Trigger - hkp-18425 HK91, G3 Ambidextrous Trigger Pack (0,1) - Match Trigger
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    HK91, G3 Ambidextrous Trigger Pack (0,1) - Match Trigger

    HKP HK Parts

    $474.95
    HKP/H&K G3/91 (7.62x51/.308) 2 Position 0,1 Ambidextrous Match Trigger Pack Complete with custom trigger conversion to achieve a light target trigger with an ultra-smooth pull. This HK German semi-auto trigger pack has been enhanced by...
    hkp-18425
    $474.95
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    $474.95
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  • New - HKP MP5SD 40/10 110 Degree Locking Piece - HKP-18274 HK MP5SD Locking Piece - 110 Degree
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    HK MP5SD Locking Piece - 110 Degree

    HKP HK Parts

    $49.95
    MP5 40 & MP5 10mm SD 110 Degree Locking Piece - USA Made in the USA from an enhanced material and heat treated to factory specifications. Each US made MP5 40/10 SD 110 degree locking price is designed for use with the MP5 40/10 SD variants...
    HKP-18274
    $49.95
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