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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  • Used - HK G3 .22 20 Round Conversion Magazine - USED - HKP-20750 HK G3 .22 20 Round Conversion Magazine - USED
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    HK G3 .22 20 Round Conversion Magazine - USED

    $199.95
    HK G3 .22 20 Round Conversion Magazine - USED HK .22 caliber conversion kit 20-round magazine for The G3/91. Ideal for those that have the caliber conversion kit and wants to stack up on spare magazines. Condition is used to like new in the gray paint...
    HKP-20750
    $199.95
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  • HK G36, G36C, G36K Magwell HK G36, G36C, G36K Magwell
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    HK G36, G36C, G36K Magwell

    HKP HK Parts

    $49.95
    Magazine Well - Magwell FDE & RAL8K - HK G36 Allows use of all factory G36 and Magpul G36 magazines. This magwell fits all 30, 10, and 100 round magazines and drums. Compatible With: G36, G36K, G36C In-spec clones and custom builds
    HKP-19300-M
    $49.95
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  • New - H&K HK UMP 2 Position Complete Lower - Black - HKP-19117 HK UMP 2 Position Complete Lower
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    HK UMP 2 Position Complete Lower

    H&K Heckler & Koch

    $579.95
    New HK German 2 Position Lower Complete New German Heckler & Koch UMP Lower. 2 position settings (S,F). Each lower comes complete with all the factory internals. This item is ideal for the USC to UMP conversion or to keep as a spare.  Compatible...
    HKP-19117
    $579.95
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  • Out Of Stock
    New - HKP HK G36C Barrel - Black - HKP-18195 HK G36C Barrel - 5.56 / .223 - 8.98"

    HK G36C Barrel - 5.56 / .223 - 8.98"

    HKP HK Parts

    $499.95
    HKP HK G36C Barrel Brand new HK G36C barrel made from 416 stainless steel and nitrided, uninstalled & unfired. The G36C barrel uses a factory German or USA spec G36K/G36C gas block. Counts as one USA made complaint part. Perfect for the SL8/G36 style...
    HKP-18195
    $499.95
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  • Out Of Stock
    HK MP5K - LS5 Complete Trigger Group - Semi /Shelf HK MP5K - LS5 Complete Trigger Group - Semi /Shelf

    HK MP5K - LS5 Complete Trigger Group - Semi /Shelf

    Lee Sporting

    $549.95
    Lee Sporting LS5 Complete Trigger Group - MP5K Ergonomic upgrade to OEM grip. 4.3oz lighter than OEM trigger group. Housing made from MJF PA11 Nylon. Bespoke ejector lever CNC cut from 4140. Compatible With: HK PTR Dakota Tactical Other clones that...
    HKP-20466
    $549.95
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  • Used - Fero Z51 Claw Mount Adapter - HKP-19532 Fero Z51 Claw Mount Adapter
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    Fero Z51 Claw Mount Adapter

    $9.95
    Claw Mount Adapter - German - Surplus - Z51
    HKP-19532
    $9.95
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  • New - H&K MR556/417 Trigger, Hammer Pin - HKP-15456
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    HK MR556/417 Trigger, Hammer Pin

    H&K Heckler & Koch

    $14.99
    H&K MR556/417 Trigger, Hammer Pin Compatible With: HK MR556 HK 417
    HKP-15456
    $14.99
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  • New - H&K HK P7 Series Front Sight Slide Retainer Pin - HKP-01361
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    HK P7 Series Front Sight Slide Retainer Pin

    H&K Heckler & Koch

    $4.95
    HK P7 Series Front Sight Slide Retainer Pin Compatible With: PSP P7M8 P7M10 P7M13
    HKP-01361
    $4.95
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  • New - H&K HK MR556/MR762/417 Index Pin Spring - HKP-17021
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    HK417, MR556, MR762 Index Pin Spring

    H&K Heckler & Koch

    $7.95
    H&K HK MR556/MR762/417 Index Pin Spring   Compatible With: HK MR556 HK 417 HK MR762  
    HKP-17021
    $7.95
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  • New - H&K HK SL8-1 Rear Sight Screw - HKP-16383
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    HK SL8-1 Rear Sight Screw

    H&K Heckler & Koch

    $14.95
    H&K HK SL8-1 Rear Sight Screw
    HKP-16383
    $14.95
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  • New - H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) 3 Position Selector Lever - Right - HKP-01888
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    HK UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) 3 Position Selector Lever - Right

    H&K Heckler & Koch

    $19.95
    HK UMP & G36 Right Safety Selector Lever For All 3 Position Lowers Only  
    HKP-01888
    $19.95
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  • New - HDPS HK UMP/USC Birdcage Flash Hider For Threaded Barrels - Threaded 16x1 LH - HKP-02579 HK UMP, USC Flash Hider  - Birdcage - Threaded 16x1 LH
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    HK UMP, USC Flash Hider - Birdcage - Threaded 16x1 LH

    HDPS

    $137.95
    HDPS HK UMP/USC Birdcage Flash Hider For Threaded Barrels - Threaded 16x1 LH Designed for threaded barrels with a 16x1 LH thread, this flash suppressor is modeled after the HK UMP flash suppressor for flanged barrels. It’s perfect for those who...
    HKP-02579
    $137.95
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