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 - H&K Screwdriver for Adjustable Rear Sight - HKP-21981 HK Screwdriver for Adjustable Rear Sight
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    HK Screwdriver for Adjustable Rear Sight

    H&K Heckler & Koch

    $9.95
    Screwdriver for Adjustable Rear Sight Precision screwdriver designed for adjusting rear sights. Ideal for fine-tuning windage and elevation.    
    HKP-21981
    $9.95
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    $9.95
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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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  • 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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  • 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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  • 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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  • 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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  • 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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  • Used - B&T Folding Stock/Length Adjustable Helmet Stock Section - Used - HKP-19784 B&T Folding Stock/Length Adjustable Helmet Stock Section - Used
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    B&T Folding Stock/Length Adjustable Helmet Stock Section - Used

    B&T Brugger & Thomet

    $49.95
    B&T HK MP5K, SP5K, SP89 Folding/Adjustable Helmet Stock Section Used stocks taken from demilled Swiss Police MP5's. A great stock and value at a great price. Swiss made B&T folding and length adjustable helmet stock for the HK MP5, MP5K and...
    HKP-19784
    $49.95
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  • New - H&K HK G36K Forearm - Black - HKP-00617
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    HK G36K Handguard

    H&K Heckler & Koch

    $139.95
    HK G36K Forearm With Hand Stop & Heat Shield- German HK New HK German latest production HK G36K forearm that has the hand stop and heat shield installed. Also a popular forearm choice for those doing the SL8 to G36 conversions. Has the mounting...
    HKP-00617
    $139.95
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  • Out Of Stock
    New - F5 MFG 50 Round BT APC9, BT GHM9 9mm Drum Magazine - Black - HKP-18577 F5 MFG 50 Round BT APC9, BT GHM9 9mm Drum Magazine

    F5 MFG 50 Round BT APC9, BT GHM9 9mm Drum Magazine

    F5 MFG

    $168.95
    F5 MFG 50 Round BT APC9 & GHM9 9mm Drum Magazine  The only one of its kind, Brugger & Thomet APC9 & GHM9 50 round drum magazine. Truly an incredible combination of quality and performance, be the first to own this exclusive accessory...
    HKP-18577
    $168.95
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