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 MR556 A4/416 Rear Takedown Pin - HKP-22029 HK416, HK417, MR556, MR762 Takedown Pin - Rear - A4 Style

    HK416, HK417, MR556, 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
    Out Of Stock
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    $43.95
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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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  • 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 - B&T APC 9mm, APC .45 Jet Funnel - Black - HKP-18034 APC Jet Funnel - 9mm, .45 ACP
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    APC Jet Funnel - 9mm, .45 ACP

    B&T Brugger & Thomet

    $75.00
    B&T APC 9mm, APC .45 Jet Funnel Swiss B&T manufactured Jet funnel for the APC 9mm and .45 Cal models.
    HKP-18034
    $75.00
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    $75.00
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  • HK G3, HK33, HK93 Bayonet w/Scabbard - Surplus
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    HK G3, HK33, HK93 Bayonet w/Scabbard - Surplus

    H&K Heckler & Koch

    $106.95
    HK G3, HK33, HK93 Bayonet with Scabbard - Surplus Genuine German HK military surplus bayonet in used/good condition. These are the 12-groove version of the popular military bayonet.  Scabbard is included. Compatible With: HK G3 HK91 HK33 HK93
    HKP-19691
    $106.95
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  • New - H&K HK MR556/416 Forward Assist Plunger Pin - HKP-17542
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    HK416, MR556 Forward Assist Plunger Pin

    H&K Heckler & Koch

    $9.95
    H&K HK MR556/416 Forward Assist Plunger Pin  
    HKP-17542
    $9.95
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  • New - H&K HK UMP/USC Rear Sight Support Roll Pin - HKP-02155
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    HK UMP, USC Sight Support Roll Pin - Rear

    H&K Heckler & Koch

    $9.95
    HK UMP & USC Rear Sight Support Roll Pin This is the axle pin that holds the rear sight assembly to the rear sight housing of the receiver on the USC or UMP firearm.
    HKP-02155
    $9.95
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  • Out Of Stock
    New - HK G36 Backplate w/ Recoil Buffer - HKP-18538 HK G36 Backplate - Recoil Buffer - US

    HK G36 Backplate - Recoil Buffer - US

    USA

    $44.95
    HK G36 Backplate With Recoil Buffer New G36 Backplate with new G36/SL8 recoil buffer. This is a great spare or replacement to have on hand. These are also required for those that are doing the SL8-G36 conversions provided by Tommy Bostic & Chopstix...
    HKP-18538
    $44.95
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  • On Sale
    New - HK G36/SL8 Extractor - HKP-18882 HK G36, SL8 Extractor
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    HK G36, SL8 Extractor

    USA

    Now: $39.95
    Was: $67.95
    G36 & HK SL8 Extractor For Bolt Head Compatible With: All G36 variants SL8-1, SL8-6
    HKP-18882
    Now: $39.95
    Was: $67.95
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    Now: $39.95
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  • New - H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Trigger Spring - HKP-01864
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    HK UMP, G36 Trigger Spring

    H&K Heckler & Koch

    $6.95
    H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Trigger Spring Trigger Spring For All HK UMP & G36 Lowers
    HKP-01864
    $6.95
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  • New - H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Safety Selector Lever (0,1,F) - HKP-01889
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    HK UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Safety Selector Lever (0,1,F)

    H&K Heckler & Koch

    $19.95
    HK UMP & G36 Left Side Safety Selector Lever With Axle - 3 Position Navy Compatible With All Navy 3 Position Lowers (0,1,F): HK UMP HK G36
    HKP-01889
    $19.95
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