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 - B&T Unigrip Fixed With Storage Compartment - FDE - HKP-18042
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    B&T Unigrip Fixed With Storage Compartment - FDE

    B&T Brugger & Thomet

    $69.95
    B&T Vertical Grip - Fixed Style With Storage Compartment - TAN Swiss made B&T vertical for-end grip for picatinny. Made of tan polymer and includes a water tight storage compartment in the bottom of the grip. Will fit all mil-spec picatinny rails...
    HKP-18042
    $69.95
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  • New - HKP MP5SD 9mm Pistol Build Kit With Flat, Top Rail & Weldment Set - SEF Binary Trigger - HKP-20524
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    HK MP5SD Parts Kit - Pistol Build - 9mm - Binary Trigger - Receiver Flat & Weldment Set

    HKP HK Parts

    $2,389.95
    HKP MP5SD 9mm Pistol Build Kit With Flat, Top Rail & Weldment Set - SEF Binary Trigger MP5SD 9mm parts kit complete with all the parts required for an MP5 semi-auto pistol build. Each kit comes with all 6 of the needed US made compliance parts to be...
    HKP-20524
    $2,389.95
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  • New - Surefire (7.62x.308) SOCOM 3-Prong Flash Hider - Threaded 5/8x24 - HKP-19992 SOCOM Flash Hider - 7.62x51 / .308 - 3 Prong - Threaded 5/8x24
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    SOCOM Flash Hider - 7.62x51 / .308 - 3 Prong - Threaded 5/8x24

    Surefire

    $159.95
    Surefire (7.62x.308) SOCOM 3-Prong Flash Hider - Threaded 5/8x24 The SureFire three-prong flash hider is designed for Armalite AR-10, DPMS LR308, and other 7.62 rifles with 5/8x24 muzzle threads. Its patent-pending design reduces muzzle flash by over 99%...
    HKP-19992
    $159.95
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  • New - H&K HK MR762 Ejection Door Clamping Sleeve - HKP-16518
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    HK MR762 Ejection Door Clamping Sleeve

    H&K Heckler & Koch

    $4.95
    H&K HK MR762 Ejection Door Clamping Sleeve Compatible With: HK MR762
    HKP-16518
    $4.95
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  • New - H&K HK MR762/417 Axle Extractor Retaining Pin - HKP-16810
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    HK417, MR762 Axle Extractor Retaining Pin

    H&K Heckler & Koch

    $8.95
    H&K HK MR762/417 Axle Extractor Retaining Pin This extractor retaining pin is constructed of durable, black finished, steel and is an OEM factory original H&K component. This retaining pin is designed to fit the HK417 & MR762 model of rifles...
    HKP-16810
    $8.95
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  • New - Geissele HK 417 Trigger - HKP-16478 HK417 Trigger - Geissele SSF
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    HK417 Trigger - Geissele SSF

    Geissele

    $489.95
    HK417 SSF Trigger- Geissele The Geissele Super Select-Fire (SSF) HK417 trigger is a select-fire combat trigger that Geissele Automatics developed for the U.S. Special Operations Community. The HK417 SSF is a non-adjustable combat style two-stage trigger...
    HKP-16478
    $489.95
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  • New - HKP HK MR556/CR556/MR762 H-Key 17 Rail Segment - HKP-17847 HK MR556, MR762 H-Key 17 Rail Segment
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    HK MR556, MR762 H-Key 17 Rail Segment

    HKP HK Parts

    $44.95
    HK MR556, CR556 & MR762 HKey Rail Segment - 17 Slot 17 slot rail segment for the new "HKey" style forearms.  This rail section is designed to fit and attach to any of the new HKey style forearms now being shipped on the MR556, CR556, MR762 and...
    HKP-17847
    $44.95
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  • New - H&K HK MR556/416 Full Auto Hammer - HKP-02673
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    HK416, MR556 Semi-Auto Hammer - Complete

    H&K Heckler & Koch

    $107.95
    H&K HK416, MR556 Semi-Auto Hammer - Complete Genuine German complete hammer and spring assembly.  Includes: Semi-auto hammer Hammer spring Side bushing Compatible With: MR556A1 MR556 A4 HK416 AR-15 AR-15 style semi-auto firearms chambered in...
    HKP-02673
    $107.95
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  • HK UMP Paddle Magazine Release - Extended HK UMP Paddle Magazine Release - Extended
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    HK UMP Paddle Magazine Release - Extended

    HKP HK Parts

    $34.95
    UMP Paddle Magazine Release - Extended Billeted alloy UMP magazine release. This is a very common repair & replacement part as they are fairly easy to break on the UMP lower. With this new metal mag release you get more surface area as well as a much...
    HKP-17919
    $34.95
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  • New - PTR-32 (7.62x39) Locking Piece - 65 degree - HKP-18520 PTR-32 (7.62x39) Locking Piece - 65 degree
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    PTR-32 (7.62x39) Locking Piece - 65 degree

    PTR

    $67.95
    PTR-32 (7.62x39) Locking Piece - 65 degree New PTR Locking Piece For PTR-32. Marked "32" for the PTR-32 series of rifles and pistols. This is a 65 degree locking piece. New PTR manufacture. This locking peice will also work for custom HK builds as well.
    HKP-18520
    $67.95
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  • Out Of Stock
    New - HKP HK 91/G3 (7.62x51/.308) Complete Semi Bolt Group - HKP-01473 HK91, G3 Complete Semi Bolt Group

    HK91, G3 Complete Semi Bolt Group

    HKP HK Parts

    $339.95
    US Made HK 91/G3 Semi-Auto Bolt Group Complete - New Each bolt group is built using HK factory prints and specs here in the US. As a bonus, each bolt group counts as two US parts for US 922r compliance. Everything you need as a spare or a direct...
    HKP-01473
    $339.95
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  • New - H&K 91/93/33/53/G3 (5.56/.223) & (7.62x51/.308) Anti-Rattle Mag Release - HKP-01126 HK33, HK53, HK93, HK91, G3 Anti-Rattle Mag Release
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    HK33, HK53, HK93, HK91, G3 Anti-Rattle Mag Release

    H&K Heckler & Koch

    $64.95
    HK German Anti Rattle Paddle Magazine Release This item is a new H&K genuine part not used or surplus for installation on all HK .223 & .308 HK Rrifles. This is the highly desired anti-rattle-style paddle mag release. Compatible With: HK 91 HK...
    HKP-01126
    $64.95
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    $64.95
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