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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  • Used - H&K 91/G3 (7.62x51/.308) Navy Style Trigger Group (SEF) - Used Good - HKP-00930 HK91, G3 Navy Style Trigger Group (SEF) - Used Good
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    HK91, G3 Navy Style Trigger Group (SEF) - Used Good

    H&K Heckler & Koch

    $354.95
    H&K 91/G3 (7.62x51/.308) Navy Style Trigger Group (SEF) - Used Good These are pulled from German military HK G3 rifles. These work great as spares or for collectible items. These are used but in good shape overall. Includes: SEF Black Polymer...
    HKP-00930
    $354.95
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  • On Sale
    New - H&K 91/G3 (7.62x51/.308) Trigger Group (0,1,3,F) - 4 Position - Safe/Semi Only - HKP-01663 HK91, G3 Trigger Group - 4 Position 0,1,3,F - Safe Semi Only
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    HK91, G3 Trigger Group - 4 Position 0,1,3,F - Safe Semi Only

    H&K Heckler & Koch

    Now: $1,234.95
    Was: $1,999.95
    HK G3 & HK 91 4 Position (0,1,3, F) Burst Trigger Group Complete - New Factory German The look and feel of the original 4-position, push-pin trigger group but with a semi-auto trigger pack. This clipped and pinned housing is drop-in ready and a great...
    HKP-01663
    Now: $1,234.95
    Was: $1,999.95
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    Now: $1,234.95
    Was: $1,999.95
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  • Out Of Stock
    New - H&K MP5K 9mm 3 Position (S,E,3F Pictogram) Burst Trigger Housing - Push Pin - RARE - HKP-02015 HK MP5K Burst Trigger Housing - 3 Position Pictogram S,E,3F - Push Pin - 9mm - RARE

    HK MP5K Burst Trigger Housing - 3 Position Pictogram S,E,3F - Push Pin - 9mm - RARE

    H&K Heckler & Koch

    $0.00
    H&K MP5K 9mm 3 Position (S,E,3F Pictogram) Burst Trigger Housing - Push Pin - RARE This rare HK MP5K SE3F marked ambidextrous push pin trigger features a 3 position pictogram (S,E,3F) Safe, Semi, and 3-Round Burst. With only a few available in the...
    HKP-02015
    $0.00
    Out Of Stock
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  • New - RCM HK MP5N 9mm Barrel - Threaded 1/2x32 - 3-Lug - HKP-16967 HK MP5N Barrel - 9mm - 8.85" - Threaded 1/2x32 with 3 Lug
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    HK MP5N Barrel - 9mm - 8.85" - Threaded 1/2x32 with 3 Lug

    RCM

    $179.95
    RCM HK MP5N 9mm Barrel - Threaded 1/2x32 - 3-Lug This MP5N barrel delivers exceptional value, crafted from premium Cold Hammer Forged Steel and treated with a durable nitride process. It easily accommodates suppressors and other muzzle attachments. Brand...
    HKP-16967
    $179.95
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    $179.95
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  • New - H&K Clipped & Pinned Semi-Auto FBI (0,1) Ambidextrous Trigger Group - HKP-00154 HK MP5, HK94 Ambidextrous Trigger Group - Clipped and Pinned Semi-Auto FBI (0,1)
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    HK MP5, HK94 Ambidextrous Trigger Group - Clipped and Pinned Semi-Auto FBI (0,1)

    H&K Heckler & Koch

    $799.95
    H&K Clipped & Pinned Semi-Auto FBI (0,1) Ambidextrous Trigger Group HK German factory Clipped & Pinned Semi-Auto FBI (0,1) Ambidextrous Trigger Group in 9mm For Your HK94 Or MP5 Conversion, this part updates your HK to the newer style...
    HKP-00154
    $799.95
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    $799.95
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  • HK91, G3 Trunnion - New Old Stock HK91, G3 Trunnion - New Old Stock
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    HK91, G3 Trunnion - New Old Stock

    H&K Heckler & Koch

    $79.95
    Heckler and Koch Trunnion for HK91, G3 - New Old Stock Original Heckler and Koch trunnion for HK91 and G3 rifles. This is a new old stock, original-production component from older HK manufacturing runs and has not been previously installed. Ideal for...
    HKP-99363
    $79.95
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    $79.95
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  • HK MP5K, AP5-P Rear Sight Drum HK MP5K, AP5-P Rear Sight Drum
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    HK MP5K, AP5-P Rear Sight Drum

    MKE

    $28.95
    MKE MP5K & AP5-P Rear Sight Drum Factory MKE manufactured rear sight drum for the Century AP5-P.   Compatible With: HK MP5K Century AP5-P, AP5-M HK SP89 HK SP5K In-spec clones and custom builds
    HKP-22480
    $28.95
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    $28.95
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  • New - HK MP5 Magpul UCS Stock with Adapter - HKP-22197 HK MP5 UCS Stock and Adapter
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    HK MP5 UCS Stock and Adapter

    HKP HK Parts / Magpul

    $317.95
    HK MP5 Magpul UCS Stock with Adapter The HK Parts UCS adapter and stock for the MP5 pairs our proven stock adapter with Magpul's UCS stock for a compact, adjustable configuration. The UCS stock features a reversible hinge for left and right folding...
    HKP-22197
    $317.95
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    $317.95
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  • New - H&K MR556/MR762 A4 Disconnector - HKP-21969
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    HK MR556, MR762 A4 Disconnector

    H&K Heckler & Koch

    $18.95
    H&K MR556/MR762 A4 Disconnector Factory H&K disconnector for use in MR556 A4 and MR762 A4 platforms.   Compatible With: HK MR556 A1/A4 HK MR762 A1/A4  
    HKP-21969
    $18.95
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    $18.95
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  • On Sale
    New - HK 416 Bolt Hold Open Catch - HKP-99101 HK416 Catch - Bolt Hold Open
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    HK416 Catch - Bolt Hold Open

    USA

    Now: $19.95
    Was: $39.95
    HK 416 Bolt Hold Open Catch US-made bolt hold open catch for the HK 416. Compatible  With: HK 416 THIS CLOSEOUT PART IS NOT ELIGIBLE FOR RETURN, REFUND, OR EXCHANGE.  SALE IS FINAL.  
    HKP-99101
    Now: $19.95
    Was: $39.95
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    Now: $19.95
    Was: $39.95
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  • New - Nefarious Arms HK MR556/416 11" A5 Barrel - HKP-21839 HK416 A5, MR556 A4 Barrel - 5.56 - 11" - Threaded 1/2"x28 - A5
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    HK416 A5, MR556 A4 Barrel - 5.56 - 11" - Threaded 1/2"x28 - A5

    Nefarious Arms

    $594.95
    Nefarious Arms HK MR556/HK416 11" A5 Barrel ***THE BARREL EXTENSION RIM IS MARKED "HAUS" DUE TO AN ERROR BY THE BARREL EXTENSION SUPPLIER.  THE MARKING IS NOT VISIBLE ONCE INSTALLED.  THESE BARRELS ARE GENUINE NEFARIOUS BARRELS AS NEFARIOUS...
    HKP-21839
    $594.95
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    $594.95
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  • New - HKP HK G36 Replacement 30 Round Magazine Spring - HKP-21830 HK G36 Magazine Spring - 30 Round
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    HK G36 Magazine Spring - 30 Round

    HKP HK Parts

    $7.95
    HKP HK G36 Replacement 30 Round Magazine Spring A high-quality replacement spring designed to restore optimal performance to your G36 magazine. Built to withstand frequent use, this component ensures smooth feeding and reliable function. Compatible...
    HKP-21830
    $7.95
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    $7.95
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