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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  • On Sale
    Used - H&K German MP5 SEF F/A Trigger Group - USED - HKP-13932 HK MP5 Trigger Group - SEF Full Auto - USED
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    HK MP5 Trigger Group - SEF Full Auto - 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
    Was: $999.95
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  • New - B&T MP5, MP5K Low Mount For Trijicon ACOG - HKP-17284
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    HK MP5, SP5K Optic Mount, Trijicon ACOG - 84mm - Low Profile

    B&T Brugger & Thomet

    $169.95
    B&T Mounting Rail NAR for HK MP5 & MP5K with Trijicon ACOG THIS MOUNT HAS BEEN DISCONTINUED.  ONLY A COUPLE UNITS LEFT. Specifications: Color: Black Height max: 31.5 mm Length max: 84 mm Material: Aluminum Treatment: Hardcoat...
    HKP-17284
    $169.95
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    $169.95
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  • New - Magpul 25 Round PMAG M3 Magazine - 7.62x51/.308 - HKP-16908 Magpul 25 Round PMAG M3 Magazine - 7.62x51/.308 Magpul HKP-16908
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    Magpul M3 PMAG Magazine - 7.62x51 / .308 - 25 Round

    Magpul

    $24.95
    Magpul PMAG 25-LR 25-Round 7.62 NATO Magpul M3 PMAG for SR25/M110 pattern rifles.  Features a true 25-round capacity, constant-curve body, and snap-on impact/dust cover. Designed specifically for military-issue MK11/M110 rifles and mil-spec...
    HKP-16908
    $24.95
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  • Out Of Stock
    New - H&K MR556 A4/416 Rear Takedown Pin - HKP-22029 HK416, MR556, HK417, MR762 Takedown Pin - Rear - A4 Style

    HK416, MR556, HK417, MR762 Takedown Pin - Rear - A4 Style

    H&K Heckler & Koch

    $43.95
    H&K MR556, HK416, HK417, MR762 Rear Takedown Pin Factory A4 rear takedown pin.  Will work for A1 and A4 applications.   Compatible With: HK MR556 A1 and A4 HK416 HK MR762 A1 and A4 HK417 AR-14, M4, M16    
    HKP-22029
    $43.95
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  • On Sale
    New - HKP HK21 Drum Hanger - HKP-21453 HK21 Drum Hanger
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    HK21 Drum Hanger

    HKP HK Parts

    Now: $164.95
    Was: $195.95
    HKP HK21 Drum Hanger Our HK21 drum hanger is precisley machined from 4140 billet steel, heat-treated to 50 Rockwell, and parkerized for a durable finish. A lower cost alternative to the discontinued factory hanger, the HK Parts drum hanger is built for...
    HKP-21453
    Now: $164.95
    Was: $195.95
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    Now: $164.95
    Was: $195.95
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  • New - Nefarious Arms HK 416/MR556 10.4" A3 Barrel - HKP-21335 HK416, MR556 Barrel - 5.56 - 10.4" - Threaded 1/2"x28 - A3
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    HK416, MR556 Barrel - 5.56 - 10.4" - Threaded 1/2"x28 - A3

    Nefarious Arms

    $594.95
    Nefarious Arms HK 416/MR556 10.4" A3 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-21335
    $594.95
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    $594.95
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  • Used - H&K 90 Series Trigger German HK - Refinished - HKP-20678 HK90 Series Trigger - Refinished
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    HK90 Series Trigger - Refinished

    H&K Heckler & Koch

    $19.95
    Refinished German 90 Series Trigger Compatible With: HK91, G3, PTR HK93, 33, 53 HK MP5, 94, Zenith, POF, MKE Clone or other custom builds
    HKP-20678
    $19.95
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  • Out Of Stock
    New - H&K 45mm Picatinny Rail Cover - Black - Universal - HKP-18857 Picatinny Rail Cover - 45mm

    Picatinny Rail Cover - 45mm

    H&K Heckler & Koch

    $14.95
    H&K 45mm Picatinny Rail Cover - Universal New factory HK rubberized picatinny rail cover. Specifications: Rail cover dimensions: 45x26x7 mm Compatible With: HK picatinny rails Other Picatinny railed applications
    HKP-18857
    $14.95
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  • New - HK417, MR762 Magazine Catch Retainer Ring - HKP-16521 HK417, MR762 Mag Catch Retainer Ring
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    HK417, MR762 Mag Catch Retainer Ring

    H&K Heckler & Koch

    $10.95
    Heckler and Koch Magazine Catch Retainer Ring for HK417 and HK MR762   Compatible With: H 417, MR762
    HKP-16521
    $10.95
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    $10.95
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  • New - H&K HK MR556/416 Bolt Carrier - HKP-02718 HK416, MR556 Bolt Carrier
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    HK416, MR556 Bolt Carrier

    H&K Heckler & Koch

    $397.95
    H&K HK MR556/416 Factory Bolt Carrier With The Newer Style Bolt Retaining Key  This is the factory one-piece carrier that has the out-of-battery disconnect and the bolt retaining latch assemblies installed to make up the HK MR556 (556...
    HKP-02718
    $397.95
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    $397.95
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  • New - H&K HK SL8/G36 Front Sight - Black - HKP-00638 HK SL8, G36 Front Sight
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    HK SL8, G36 Front Sight

    H&K Heckler & Koch

    $19.95
    HK German SL8/G36 (G36,G36K,G36C & SL8) Front Sight Post - New This item is the replacement polymer front sight post for the HK sight rails.
    HKP-00638
    $19.95
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    $19.95
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  • New - HK G36/SL8/USC/UMP Rear Sight Screw - HKP-16382
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    HK G36, SL8, USC, UMP Sight Screw - Rear

    H&K Heckler & Koch

    $19.95
    HK G36, SL8 & USC, UMP Rear Sight Screw Rear sight screw to retain HK G38/Sl8 & USC/UMP rear sights housings to the rear sight base. Compatible With: G36, SL8 USC, UMP
    HKP-16382
    $19.95
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