Triggers / Packs / Housings

Triggers / Packs / Housings

Discover our extensive selection of HK triggers, packs, and housings, designed to enhance the functionality and performance of your Heckler & Koch firearms. From advanced binary triggers to competition-grade packs and Navy-style housings, our products cater to a variety of HK models including the MP5, HK416, and G3 series. Upgrade your firearm with our precision-engineered triggers for improved accuracy and responsiveness.

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  • On Sale
    New - Magpul SL HK MP5 Binary Trigger Group - HKP-21406-M HK MP5, SP5 Binary Trigger Group - Navy Pictogram
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    HK MP5, SP5 Binary Trigger Group - Navy Pictogram

    Magpul / FA Franklin Armory

    Now: $667.95
    Was: $859.95
    Magpul SL HK MP5 Binary Trigger Group: Latest and greatest trigger group option for those looking for a binary option and the added comfort of the Magpul housing. We take a Magpul SL housing, our compatible binary selector levers, and complete it with a...
    HKP-21406-M
    Now: $667.95
    Was: $859.95
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    Was: $859.95
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    New - Franklin Armory / HKP HK MP5 Trigger Group – 2 Round Engraved Binary Housing - HKP-20969-M HK MP5 Trigger Group – 2 Round Engraved Binary Housing
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    HK MP5 Trigger Group – 2 Round Engraved Binary Housing

    HKP HK Parts / FA Franklin Armory

    Now: $974.95
    Was: $1,299.95
    Franklin Armory BFSIII HK-C1/HKP MP5 Trigger Group – 2 Round Engraved Binary Housing - Clipped & Pinned 3 Position, 2 round burst style engraved pictograph – HK binary trigger group. Our latest and greatest Binary trigger group freshly...
    HKP-20969-M
    Now: $974.95
    Was: $1,299.95
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    Now: $974.95
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  • On Sale
    New - HKP HK MP5 Navy Binary Trigger Group - Engraved - HKP-21000-M Push Pin
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    HK MP5 Binary Trigger Group - Navy - Engraved

    HKP HK Parts / FA Franklin Armory

    Now: $974.95
    Was: $1,299.95
    HKP HK MP5 Navy Binary Trigger Group - Engraved 3 Position Navy style Engraved Pictograph– HK Binary Trigger Group Our latest and greatest binary trigger group freshly delivered with a factory HK German housing that was professionally engraved...
    HKP-21000-M
    Now: $974.95
    Was: $1,299.95
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    Now: $974.95
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  • On Sale
    New - Magpul SL HK MP5K - Binary Trigger Group - HKP-21408-M HK MP5K, SP89, SP5K Binary Trigger Group - 9mm
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    HK MP5K, SP89, SP5K Binary Trigger Group - 9mm

    Magpul / FA Franklin Armory

    $667.95 - $689.95
    Magpul SL HK MP5K - Binary Trigger Group Perfect for those seeking a binary option combined with the comfort of a Magpul housing. We've paired a Magpul SL housing with our compatible binary selector levers and completed it with a Franklin Armory trigger...
    HKP-21408-M
    $667.95 - $689.95
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  • On Sale
    New - Franklin Armory HK MP5K - BFSIII HK-C1 Binary SEF Navy Style Trigger Group - HKP-20928-M
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    HK MP5K, SP5K Binary Trigger Group - SEF Navy - BFSIII - 9mm

    FA Franklin Armory

    Now: $659.95
    Was: $879.95
    Franklin Armory HK MP5K - BFSIII HK-C1 Binary SEF Navy Style Trigger Group In position 3 it will fire 1 round on pull and 1 round on release. With a 4.5 lb trigger pull, making this the fastest semi-automatic trigger on the market. The BFSIII™ is...
    HKP-20928-M
    Now: $659.95
    Was: $879.95
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    Now: $659.95
    Was: $879.95
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  • New - Franklin Armory HK MP5-AR Binary Trigger Group - HKP-20642 HK MP5, HK94, SP5 Binary Trigger Group - Ambi - BFSIII - 9mm
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    HK MP5, HK94, SP5 Binary Trigger Group - Ambi - BFSIII - 9mm

    FA Franklin Armory

    $849.95
    Franklin Armory BFSIII HK-C1 - Trigger Group For  MP5, SP5 Our new and improved HK-AR Navy ambidextrous lower housing is now paired with Franklin Armory binary trigger pack and a Magpul MOE grip to make this complete MP5-AR style binary trigger...
    HKP-20642
    $849.95
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  • On Sale
    New - Franklin Armory - BFSIII MP5 – Binary Trigger Group – SEF Navy Housing - HKP-19506-M HK MP5, SP5 Binary Trigger Group – SEF Navy - BFSIII - 9mm
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    HK MP5, SP5 Binary Trigger Group – SEF Navy - BFSIII - 9mm

    FA Franklin Armory

    Now: $674.95
    Was: $899.95
    Franklin Armory - BFSIII HK-C1 – Binary Trigger Group – SEF Navy Housing SEF Navy style- HK binary trigger group  Binary triggers count as 4 922r compliant components. The components that count towards 922r compliance include the trigger...
    HKP-19506-M
    Now: $674.95
    Was: $899.95
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  • HK416, MR556 ARC-Fire with Geissele Trigger - 3-Position - Ambi Controls HK416, MR556 ARC-Fire with Geissele Trigger - 3-Position - Ambi Controls
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    HK416, MR556 ARC-Fire with Geissele Trigger - 3-Position - Ambi Controls

    AS Designs

    $689.95
    HK416, MR556 A4 3-Position ARC-Fire with Geissele*** Trigger and Ambidextrous Controls AS Designs' ARC-Fire (Active Reset Clutch) trigger is an innovative take on forced reset triggers.  The trigger is reset immediately after each shot, resulting in...
    HKP-22435
    $689.95
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  • On Sale
    Used - H&K German MP5 SEF F/A Trigger Group - USED - HKP-13932 HK MP5 Trigger Group - SEF Full Auto - Contoured- USED
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    HK MP5 Trigger Group - SEF Full Auto - Contoured- USED

    H&K Heckler & Koch

    Now: $684.95
    Was: $999.95
    HK Heckler and Koch German SEF Full Auto Trigger Group in USED condition for HK MP5 Used MP5 contoured SEF trigger group that is 100% functional and entirely authentic German HK. This German MP5, 94, or Clone SEF contoured F/A trigger group is complete...
    HKP-13932
    Now: $684.95
    Was: $999.95
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    Now: $684.95
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  • On Sale
    New - Franklin Armory HK MP5 - BFSIII HK-C1 – Binary Trigger Group – SEF – Contoured - HKP-20004-M
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    HK MP5, SP5 Binary Trigger Group - SEF Navy - BFSIII - 9mm

    FA Franklin Armory

    Now: $999.95
    Was: $1,299.95
    Franklin Armory HK MP5 - BFSIII HK-C1 – Binary Trigger Group – SEF – Contoured Complete Franklin Armory BFSIII HK-C1 binary trigger pack assembly configured in a 3-position pictogram contoured housing for HK MP5 and SP5 push-pin...
    HKP-20004-M
    Now: $999.95
    Was: $1,299.95
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  • New - H&K / HKP HK MP5, 94 Trigger Group Engraved 3 Position Navy Housing 0,1- Safe, Semi Only - HKP-17237 HK MP5, 94 Trigger Group - Engraved 3 Position Navy Housing 0,1- Safe, Semi Only
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    HK MP5, 94 Trigger Group - Engraved 3 Position Navy Housing 0,1- Safe, Semi Only

    $749.95
    H&K / HKP HK MP5, 94 Trigger Group Engraved 3 Position Navy Housing 0,1- Safe, Semi Only Finally, a lower cost alternative to the spendy & hard to find all German HK FBI or 0,1 ambidextrous trigger group in a 3 position Navy factory German HK...
    HKP-17237
    $749.95
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  • New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) 3 Position Navy Full Lower (0,1,3) - HKP-00592 HK UMP Lower - Navy 3 Position 0,1,Full
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    HK UMP Lower - Navy 3 Position 0,1,Full

    H&K Heckler & Koch

    $1,249.95
    HK Heckler and Koch 3 Position Navy Lower for HK UMP New German Heckler & Koch UMP 3 position (0, 1, full) Navy lower. Each lower comes complete with all the factory internals. These lowers are ideal for the USC to UMP conversion and to keep as a...
    HKP-00592
    $1,249.95
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    $1,249.95
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