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 - H&K MP5 40/10 Flash hider - 3-Lug - HKP-00442 HK MP5 Flash Hider - 3 Lug - .40 S&W / 10mm

    HK MP5 Flash Hider - 3 Lug - .40 S&W / 10mm

    H&K Heckler & Koch

    $199.99
    HK Heckler and Koch's Flash Hider with 3-Lug Connection Fits all factory in-spec 3 Lug MP5 40/10 Barrels. Specifications: Made In Germany 3-Lug Compatible With: HK MP5
    HKP-00442
    $199.99
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    $199.99
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  • Used - H&K A3 Retractable Stock Clamping Lever Spring - HKP-01089
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    HK A3 Buttstock Clamping Lever Spring - Retractable

    H&K Heckler & Koch

    $19.95
    HK German Retractable Stock Clamping Lever Spring For A3 Retractable Stocks This spring is the most common breakage/wear item in the internal workings of the A3 retractable stock.
    HKP-01089
    $19.95
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    $19.95
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  • New - H&K MP5, SP5 4 Position 0,1 Trigger Group - Universal Trigger group - HKP-16725
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    HK MP5, SP5 4 Position 0,1 Trigger Group - Universal Trigger group

    H&K Heckler & Koch

    $1,999.95
    H&K MP5, SP5 4 Position 0,1 Trigger Group - Universal Trigger group New HK German MP5, SP5 9mm 4 Position Burst (0,1,3, F) Trigger Housing professionally clipped & pinned and paired with a factory German MP5 trigger pack ready for your semi-auto...
    HKP-16725
    $1,999.95
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    $1,999.95
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  • On Sale
    New - MFI Picatinny Rail Riser For Scope - HKP-00899 HK MP5 SP5K, SP89, G3, HK91, HK33, HK53, HK93 Rail Riser - Picatinny
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    HK MP5 SP5K, SP89, G3, HK91, HK33, HK53, HK93 Rail Riser - Picatinny

    MFI

    Now: $29.95
    Was: $44.95
    MFI Picatinny Rail Riser For Scope MFI Picatinny rail riser to elevate your optic by 18.8mm (.740"). This see-through riser allows a full view through the factory iron sights. This unit is similar to the A.R.M.S. #5 base scope mount and STANAG to...
    HKP-00899
    Now: $29.95
    Was: $44.95
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  • New - H&K MP5/SP5 Universal SEF Housing - Like New - HKP-21779 HK MP5/SP5 Universal SEF Housing - Like New
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    HK MP5/SP5 Universal SEF Housing - Like New

    H&K Heckler & Koch

    $149.95
    H&K MP5/SP5 SEF Universal Housing - Clipped & Pinned - Like New The ultimate solution for MP5 and SP5 style receivers, this universal trigger housing simplifies swapping between receivers. German HK-manufactured, it allows you to easily transfer...
    HKP-21779
    $149.95
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    $149.95
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  • On Sale
    New - HKP HK33/53 Dual Magazine Clamp - HKP-21608-M HK33, HK53, HK93 Dual Magazine Clamp
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    HK33, HK53, HK93 Dual Magazine Clamp

    HKP HK Parts

    Now: $39.96
    Was: $49.95
    HKP HK33, HK53, HK93 Dual Magazine Clamp Securely hold two HK33 magazines together for fast mag swaps. Precision-machined from billet aluminum and anodized in the popular red or classic black. Our dual mag clamp is a must for those quick mag changes...
    HKP-21608-M
    Now: $39.96
    Was: $49.95
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    Now: $39.96
    Was: $49.95
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  • New - HKP HK SP5 ACR Adapter - HKP-21519 HK SP5 ACR Stock or Brace Adapter
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    HK SP5 ACR Stock or Brace Adapter

    HKP HK Parts

    $139.95
    HKP HK SP5 ACR Stock or Brace Adapter This adapter allows the ACR stock to be fully compatible with the SP5 and in-spec MP5 platforms. It’s built from aircraft-grade aluminum with a pre-installed buffer for a straightforward, drop-in conversion...
    HKP-21519
    $139.95
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    $139.95
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  • New - Nefarious Arms HK 416 Gas Block Assembly Tool - HKP-21273 HK416 Gas Block Assembly Tool
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    HK416 Gas Block Assembly Tool

    Nefarious Arms

    $94.95
    Nefarious Arms HK 416 Gas Block Assembly Tool A Nefarious Arms creation for those that like to service or replace their 416 gas block. This assembly tool will effortlessly help you assemble or disassemble your 416 gas block by simply aligning the two...
    HKP-21273
    $94.95
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    $94.95
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  • New - KCI 30 Round HK MP5 Supersonic Labeled Magazine - HKP-21130 KCI 30 Round HK MP5 Supersonic Labeled Magazine
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    KCI 30 Round HK MP5 Supersonic Labeled Magazine

    KCI

    $44.95
    KCI 30 Round HK MP5 Supersonic Labeled Magazine Each 9mm Magazine Features: Latest generation and factory fresh, individually sealed magazine 30-round capacity 9mm caliber marked (9mm x 19) Curved for more reliable feeding with steel chrome follower All...
    HKP-21130
    $44.95
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  • New - Blitzkrieg PTR Spike Front Sight Gen 2 - Orange - HKP-21105 PTR Spike Front Sight Gen 2 - Orange
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    PTR Spike Front Sight Gen 2 - Orange

    Blitzkrieg Components

    $84.95
    Blitzkrieg PTR Spike Front Sight Gen 2 - Orange The Blitzkrieg Gen 2 HK-style front sight introduces a modernized sighting system with enhanced precision and ease of use. Featuring a distinctive spike-tipped post and a bright Tritium dot with an orange...
    HKP-21105
    $84.95
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  • On Sale
    New - Omega HK UMP .45 ACP Barrel - 3-Lug - HKP-21070 HK UMP Barrel - .45 ACP - 3 Lug Adapter
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    HK UMP Barrel - .45 ACP - 3 Lug Adapter

    OMEGA

    Now: $344.95
    Was: $449.95
    Omega HK UMP .45 ACP Barrel - 3-Lug This is the newest barrel for the UMP to hit the market that will come with a removable 3-lug adapter. The 3-lug adapter will be the same spec as the MP5 3 lug, making your UMP more versatile when it comes down to...
    HKP-21070
    Now: $344.95
    Was: $449.95
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    Was: $449.95
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  • New - Michaels Machines USC to UMP Stock Block B w/Thumbscrew - HKP-20722 HK USC to UMP Stock Block B with Thumb Screw
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    HK USC to UMP Stock Block B with Thumb Screw

    Michaels Machines

    $249.95
    Michaels Machines USC to UMP Stock Block B w/Thumbscrew For use with all HK UMP factory or US made folding stocks. Each unit comes with a thumbscrew on one end and a slotted section on the other end. This is a required part for the HK USC-UMP style...
    HKP-20722
    $249.95
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    $249.95
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