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 MR762, HK 417 Free Floating DMR Rail System - Black - HKP-17706 HK417, MR762 Rail System - DMR Free Floating
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    HK417, MR762 Rail System - DMR Free Floating

    H&K Heckler & Koch

    $949.95
    HK MR762, 417 Extended Free Floating Rail System New Heckler and Koch MR762, HK417, and G28 Extended DMR (designated marksman rifle). Forearm with flip up front sight and suppressor window Cutout. Optimized design to mitigate the heat emissions for long...
    HKP-17706
    $949.95
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    $949.95
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  • Used - H&K HK SP5 Spec Only Navy Style SEF Clipped & Pinned Housing - Like New - HKP-20074 HK SP5 Spec Only Navy Style SEF Clipped and Pinned Housing - Like New
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    HK SP5 Spec Only Navy Style SEF Clipped and Pinned Housing - Like New

    H&K Heckler & Koch

    $149.95
    HK German SP5 Spec Navy Style SEF Clipped & Pinned Housing - Excellent / Like New In outstanding, like-new condition—most items have never been installed on a firearm. Designed specifically for all HK SP5 models, these components are perfect...
    HKP-20074
    $149.95
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    $149.95
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  • New - H&K HK MR762/417 Recoil Buffer Spring - HKP-16608
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    HK417, MR762 Recoil Buffer Spring

    H&K Heckler & Koch

    $24.95
    H&K HK MR762/417 Recoil Buffer Spring A must have wear and replacement part for your, HK 417 & MR762 firearm. Compatible With: HK MR762 HK 417
    HKP-16608
    $24.95
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    $24.95
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  • New - HK MR556/416 DMR Extra Long Forearm - Black - HKP-17683 HK416, MR556 DMR Extra Long Handguard
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    HK416, MR556 DMR Extra Long Handguard

    H&K Heckler & Koch

    $859.95
    HK MR556/416 DMR Extra Long Forearm New Heckler & Koch MR556, HK 416 Extended DMR (designated marksman rifle) Forearm With Suppressor Window Cutout. Optimized design to mitigate the heat emissions for long range shooting and to prevent the mirage...
    HKP-17683
    $859.95
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    $859.95
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  • New - HK 416 10.4" Upper Gas Block - German - HKP-01543 HK416 Gas Block for 10.4" Barrels
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    HK416 Gas Block for 10.4" Barrels

    H&K Heckler & Koch

    $279.95
    Heckler and Koch HK German 10.4" Barrel Non-Vented Gas Block Complete Factory HK NON-VENTED 10.4" gas block. Compatible With: HK416 10.4" uppers HK MR556 to 10.4" conversions
    HKP-01543
    $279.95
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    $279.95
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  • New - HKP HK UMP (.40 S&W) 15 Round Magazine - HKP-17584 HK UMP Magazine - .40 S&W - 15 Round
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    HK UMP Magazine - .40 S&W - 15 Round

    HKP HK Parts

    $49.95
    UMP, SMG .40 Cal 15 Round Magazine - US ***Shown side by side with a standard capacity magazine Compact 15 round magazine for HK UMP .40 caliber carbines, SMG's, and USC-UMP .40 caliber conversions. Each magazine features steel feed lips and durable...
    HKP-17584
    $49.95
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    $49.95
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  • New - HKP HK MP5 (.40 S&W) Locking Roller -6 - HKP-17566
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    HK MP5 Locking Roller -6 - .40 S&W

    HKP HK Parts

    $11.95
    HK US MP540 Undersized Locking Roller, -6 The proper roller size is essential for headspacing the bolt gap correctly. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the size you...
    HKP-17566
    $11.95
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    $11.95
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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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    $549.95
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  • On Sale
    New - H&K 91/G3/MSG90 (7.62x51/.308) 2-20 Round Aluminum Mags W/ Rubberized Mag Pouch - HKP-15793 HK91, G3, PTR TWO Magazines and Rubberized Mag Pouch - 20 Round
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    HK91, G3, PTR TWO Magazines and Rubberized Mag Pouch - 20 Round

    H&K Heckler & Koch

    Now: $29.95
    Was: $49.95
    H&K 91/G3/MSG90 (7.62x51/.308) 2-20 Round Aluminum Mags W/ Rubberized Mag Pouch 2 new/like new HK German 20 round aluminum magazine with green rubberized mag pouch bundle deal: 2 20 round aluminum magazines with new green rubberized mag pouch...
    HKP-15793
    Now: $29.95
    Was: $49.95
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    Now: $29.95
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  • HK MP5K, SP89, SP5K AR M4 Adapter and Stock - 9mm HK MP5K, SP89, SP5K AR M4 Adapter and Stock - 9mm
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    HK MP5K, SP89, SP5K AR M4 Adapter and Stock - 9mm

    HKP HK Parts

    $229.95
    HK MP5K, MP5K-N AR Magpul Stock Each HK MP5K AR stock adapter is made from a solid billet of CNC machined aircraft grade aluminum. Properly buffered with factory correct H buffers to protect your expensive firearm. This is the finest AR stock adapter...
    HKP-17175
    $229.95
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    $229.95
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  • Out Of Stock
    New - POF MP5, HK94, MP5K, SP89 & SP5K Firing Pin - HKP-18264 HK MP5, HK94K, SP89 Firing Pin

    HK MP5, HK94K, SP89 Firing Pin

    POF

    $24.95
    HK Contract MP5, HK94 Firing Pin - POF Made from HK prints and tooling in the POF factory. The USA and German HK offering are a better offering with tighter tolerances and better materials. Compatible With: MP5 HK94 MP5K SP89 SP5K All 9mm, 40/10mm...
    HKP-18264
    $24.95
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    $24.95
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  • Out Of Stock
    New - CFG MP5, MP5K Low Profile Rear Sight Base Mount - 5 Slot - HKP-18235 HK MP5, MP5K Optic Mount - Low Profile - Rear - Picatinny

    HK MP5, MP5K Optic Mount - Low Profile - Rear - Picatinny

    CFG

    $99.95
    CFG MP5, MP5K Low Profile Rear Sight Base Mount - 5 Slot This new offering is a neat low profile offering that allows the user to replace the rear sight and add an extremely low profile super robust picatinny optic mount to your HK MP5, MP5K firearm...
    HKP-18235
    $99.95
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    $99.95
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