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 - Nefarious Arms HK 416/MR556 11" A3 Barrel - HKP-21619 HK416, MR556 Barrel - 5.56 - 11" - Threaded 1/2"x28 - A3
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    HK416, MR556 Barrel - 5.56 - 11" - Threaded 1/2"x28 - A3

    Nefarious Arms

    $594.95
    Nefarious Arms HK 416/MR556 11" 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 WILL...
    HKP-21619
    $594.95
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    $594.95
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  • New - HKP HK SL8/G36 Conversion Stock Block with Picatinny Rail - HKP-21574-M HK SL8 to G36 Stock Block - Conversion - Sling Pin - Picatinny Rail
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    HK SL8 to G36 Stock Block - Conversion - Sling Pin - Picatinny Rail

    HKP HK Parts

    $149.95
    HKP HK SL8/G36 Conversion Stock Block with Picatinny Rail SL8 to G36 stock block with Picatinny rail offers superior adjustability for the stock of your choice, making it an excellent choice for SL8 conversion projects. Crafted from billet and cerakoted...
    HKP-21574-M
    $149.95
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    $149.95
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  • Out Of Stock
    On Sale
    New - HKP HK MP5 Minimalist Picatinny Rail Optic Mount - BLEMISHED - HKP-21072-B HK MP5 Optic Mount - Minimalist Picatinny Rail - BLEMISHED

    HK MP5 Optic Mount - Minimalist Picatinny Rail - BLEMISHED

    HKP HK Parts

    Now: $58.95
    Was: $97.95
    HKP HK MP5 Minimalist Picatinny Rail Optic Mount - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Our new Picatinny style optic mount is a game changer...
    HKP-21072-B
    Now: $58.95
    Was: $97.95
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  • New - JMAC Universal Picatinny 8" Stock with 1913 Folding Mech - HKP-21241-M Picatinny  8" Stock with 1913 Folding Mech
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    Picatinny 8" Stock with 1913 Folding Mech

    JMAC Customs

    $304.90 - $309.90
    JMac 8" Stock with 0.275" Cheek Rise - 1913 Attachment Feautures: New Integrated Rubber Buttpad 2x Integrated QD Sling Socket 8" Length 0.275" Cheek Rise Drilled and tapped for optional cheek risers Compatible with JMAC & SIG folding mechanisms 7075...
    HKP-21241-M
    $304.90 - $309.90
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  • On Sale
    New - KES CZ Scorpion Evo Tailhook - HKP-21090 CZ Scorpion Evo Stock Adapter - Tailhook KES
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    CZ Scorpion Evo Stock Adapter - Tailhook KES

    Safety Harbor Firearms

    Now: $149.95
    Was: $249.95
    KES CZ Scorpion Evo Tailhook Specifications: Aluminum 6061 type 3 hard coat black anodized: main body and butt Steel, black oxide: guide rod and button Q.D. mount on both sides Adds only 3.25" in. to the rear of the receiver when closed Newer...
    HKP-21090
    Now: $149.95
    Was: $249.95
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    Now: $149.95
    Was: $249.95
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  • New - MFI (5.56/.223) G28 Style Flash Hider - Threaded 1/2x28 - HKP-17941 MFI (5.56/.223) G28 Style Flash Hider - Threaded 1/2x28
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    MFI (5.56/.223) G28 Style Flash Hider - Threaded 1/2x28

    MFI

    $79.95
    MFI (5.56/.223) G28 Style Flash Hider - Threaded 1/2x28 The G28 2nd Gen flash hider features the latest style and is threaded 1/2x28. Constructed from ordnance-grade steel, it is finished with a semi-matte, mil-spec black oxide coating for enhanced...
    HKP-17941
    $79.95
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    $79.95
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  • HK MP5 Bolt Carrier - 9mm - Red HK MP5 Bolt Carrier - 9mm - Red
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    HK MP5 Bolt Carrier - 9mm - Red

    HKP HK Parts

    $189.95
    Bolt Carrier F/A - 9mm - HK Red - MP5 Machined completely from billet ordnance steel. This carrier is made to the latest specs and is Tungsten filled, and heat-treated providing the finest American made carrier available.  This carrier has been...
    HKP-19535
    $189.95
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    $189.95
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  • Out Of Stock
    New - H&K HK MR556/416 Quad Rail w/ Flip Up Sight - Black - HKP-17710

    HK416, MR556 Quad Rail w/ Flip Up Sight

    H&K Heckler & Koch

    $599.95
    HK 416A5 9" Quad Rail With Flip Up Front Sight New latest production HK 416A5, MR556 9" quad rail with integrated built in front flip up sight. Latest upgraded design with the laser markings for the adjustable gas block for suppressed and non-suppressed...
    HKP-17710
    $599.95
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  • Out Of Stock
    New - H&K G36/SL8 (5.56/.223) Factory Recoil Buffer - HKP-00290

    HK G36, SL8 Recoil Buffer - Factory

    H&K Heckler & Koch

    $20.95
    HK G36 Or SL8 Factory Recoil Buffer   A critical spare part as these buffers deteriorate with usage and time.    
    HKP-00290
    $20.95
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  • New - H&K G36/SL8 (5.56/.223) Ejector Spring - HKP-01867
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    HK G36, SL8 Ejector Spring

    H&K Heckler & Koch

    $35.95
    HK G36 & SL8 Series Ejector Spring - HK German This is a great item to have on hand as this part is prone to wear and breakage.
    HKP-01867
    $35.95
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    $35.95
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  • New - HK G36/SL8 (5.56/.223) Cocking Handle Spring - HKP-18369 HK G36, SL8 Cocking Handle Spring - US
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    HK G36, SL8 Cocking Handle Spring - US

    $9.95
    G36 Cocking Handle Spring- US Made   Compatible With: G36 All variants SL8 All variants
    HKP-18369
    $9.95
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    $9.95
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  • New - H&K UMP/USC/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Trigger - HKP-16495 HK UMP/USC/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Trigger
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    HK UMP/USC/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Trigger

    H&K Heckler & Koch

    $19.95
    HK UMP, USC & G36 Trigger New HK German factory trigger. A great spare or replacement part. Compatible With: HK G36 HK UMP HK USC
    HKP-16495
    $19.95
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    $19.95
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