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 - H&K HK G36 Backplate Complete w/ Recoil Assembly - HKP-16735 HK G36 Backplate Complete with Recoil Assembly
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    HK G36 Backplate Complete with Recoil Assembly

    H&K Heckler & Koch

    $199.95
    HK G36 Backplate Complete With Recoil Assembly New HK German G36 Backplate with new G36/SL8 recoil buffer and recoil assembly. This assembly does include the recoil rod retaining screw. This is a great spare or replacement to have on hand. These are also...
    HKP-16735
    $199.95
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    $199.95
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  • New - Lee Sporting LS5 HK MP5 Complete Trigger Group - Semi Shelf - HKP-20465 Lee Sporting  LS5 HK MP5 Complete Trigger Group - Semi Shelf
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    Lee Sporting LS5 HK MP5 Complete Trigger Group - Semi Shelf

    Lee Sporting

    $549.95
    Lee Sporting LS5 Complete Trigger Group - MP5 Semi-shelf The LS5 trigger group from Lee Sporting is a definitive ergonomic upgrade over the OEM grip, boasting a weight reduction of 4.3oz compared to the original. This billet aluminum trigger group is...
    HKP-20465
    $549.95
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    $549.95
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  • New - RCM MP5 40, MP5 10mm Complete Bolt Group - HKP-19723 HK MP5 Bolt Group - Complete - .40 S&W, 10mm
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    HK MP5 Bolt Group - Complete - .40 S&W, 10mm

    HKP HK Parts

    $414.95
    RCM- MP5 40 & MP5 10mm - Bolt Group Complete Ideal to replace out of spec, worn, or broken bolt groups or for that custom build. Includes: RCM bolt head complete RCM locking piece RCM firing pin RCM firing pin spring RCM full auto bolt carrier...
    HKP-19723
    $414.95
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    $414.95
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  • Used - H&K SP5 Spec Only 9mm SEF Navy Style Trigger Housing - Clipped & Pinned - USED - HKP-19488 HK SP5 Spec Only 9mm SEF Navy Style Trigger Housing - Clipped & Pinned - USED
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    HK SP5 Spec Only 9mm SEF Navy Style Trigger Housing - Clipped & Pinned - USED

    H&K Heckler & Koch

    $89.95
    H&K SP5 Spec Only 9mm SEF Navy Style Trigger Housing - Clipped & Pinned - USED In used but good condition. It will have some nicks but overall this house is in good working condition. For use with SEF style trigger packs. This will not work with...
    HKP-19488
    $89.95
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  • New - Troy Industries Front Battle Sight - Black - HKP-00031 Battle Sight - Front
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    Battle Sight - Front

    Troy Industries

    $119.95
    Troy Industries Front Battle Sight Durability and dead-on accuracy have made the Troy Industries Front Folding Battle Sight one of the best choices for Special Ops and tactical users worldwide. Please Note: It will not work on a railed front gas block...
    HKP-00031
    $119.95
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    $119.95
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  • New - HK G36/SL8 (5.56/.223) Bolt Head Ejector Pin - HKP-18372 HK G36, SL8 Bolt Head Ejector Pin
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    HK G36, SL8 Bolt Head Ejector Pin

    $6.95
    HK G36/SL8 (5.56/.223) Bolt Head Ejector Pin HK Ejector roll pin for G36, SL8 bolt heads. This item is the pin that holds the ejector & ejector spring in place. A common wear & replacement item and a must have when doing bolt head maintenance...
    HKP-18372
    $6.95
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    $6.95
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  • Out Of Stock
    New - B&T HK G36K (5.56/.223) Quad Rail Handguard - HKP-16895 HK G36K (5.56/.223) Quad Rail Handguard

    HK G36K (5.56/.223) Quad Rail Handguard

    B&T Brugger & Thomet

    $329.95
    Swiss Made B&T Quad-Rail (4 Sided Picatinny Rail) Handguard For HK G36K Aluminum version with rail cover and sling swivel. The B&T offering is the finest railed hand guard available for the HK G36K or SL8 conversions to G36K spec.B&T...
    HKP-16895
    $329.95
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  • Out Of Stock
    New - H&K 21E/23E (7.62x51/.308) & (5.56/.223) E Clip For Carry Handle - HKP-00579

    HK21E, HK23E E Clip For Carry Handle - 7.62x51 / .308 - 5.56 / .223

    H&K Heckler & Koch

    $9.95
    HK German "E" Clip For Carry Handle For HK21 & HK23E folding carry handles. Clips are sold individually.
    HKP-00579
    $9.95
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    $9.95
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  • Used - H&K 91/G3 (7.62x51/.308) Magazine Catch - Used - HKP-18693 HK91, G3 Magazine Catch - Used
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    HK91, G3 Magazine Catch - Used

    H&K Heckler & Koch

    $16.95
    G3 Magazine Catch - HK 91, G3, PTR91 -.308/7.62 - USED The highest quality magazine catch available. High quality HK German production units are slightly used HK Parts from Heckler & Koch Germany. These also have the proper cut in them and do not...
    HKP-18693
    $16.95
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    $16.95
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  • New - HKP HK 91/G3 (7.62x51/.308) Complete Tungsten Full Auto Bolt Group - HKP-16249 HK91, G3 Complete Tungsten Full Auto Bolt Group
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    HK91, G3 Complete Tungsten Full Auto Bolt Group

    HKP HK Parts

    $549.95
    HKP HK 91/G3 (7.62x51/.308) Complete Tungsten Full Auto Bolt Group US Made HK 91/G3 Full Auto Bolt Group Complete - NEW Each bolt group is built using HK factory prints, specs here in the US. As an added bonus each bolt group counts as two US parts for...
    HKP-16249
    $549.95
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  • Used - H&K 93/53/33 (5.56/.223) Surplus Fixed Stock - A2 - Jungle Green - HKP-18887 HK33, HK53, HK93 Surplus Fixed Stock - A2 - Jungle Green
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    HK33, HK53, HK93 Surplus Fixed Stock - A2 - Jungle Green

    H&K Heckler & Koch

    $122.95
    Surplus - Fixed Stock - Jungle Green - HK93,33,53 Hand-picked stocks in excellent condition. Comes with matching buttpad. Ready to install on your HK or clone rifle. German military surplus, but handpicked to give you the best of the offerings...
    HKP-18887
    $122.95
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    $122.95
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  • Used - H&K German MP5 SEF F/A Trigger Group - USED - HKP-13932 HK MP5 Trigger Group - SEF F/A - USED
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    HK MP5 Trigger Group - SEF F/A - USED

    H&K Heckler & Koch

    $999.95
    H&K German MP5 SEF F/A Trigger Group - USED 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 and ready for seamless installation...
    HKP-13932
    $999.95
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    $999.95
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