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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  • 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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    $49.95
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  • New - Lee Sporting LS5 HK MP5 Complete Trigger Group Push Pin - HKP-20467 HK MP5 LS5 Trigger Group, Complete - Push Pin
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    HK MP5 LS5 Trigger Group, Complete - Push Pin

    Lee Sporting

    $549.95
    Lee Sporting LS5 Complete Trigger Group - MP5 Push Pin 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-20467
    $549.95
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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 - Ergo Tactical Deluxe Grip w/ Palm Shelf - OD Green - HKP-19981 HK416, MR556, HK417, MR762 Tactical Deluxe Grip with Palm Shelf  - OD Green
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    HK416, MR556, HK417, MR762 Tactical Deluxe Grip with Palm Shelf - OD Green

    Ergo

    $59.95
    Ergo Tactical Deluxe Grip w/ Palm Shelf - OD Green The Tactical Deluxe with Palm Shelf is the same size and shape as the Tactical Deluxe grip but has the addition of an adjustable palm shelf to support your firing hand. This grip excels on precision...
    HKP-19981
    $59.95
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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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    $9.95
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  • On Sale
    Used - H&K, B&T HK MP5 Swiss & German Parts Kit With B&T Folding Pistol Brace - HKP-19477
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    HK MP5, SP5 Parts Kit - 9mm

    Now: $1,449.99
    Was: $1,929.95
    HK German MP5 made with Swiss Marked & Proofed HK MP5 Parts Kit Includes: German demilled HK front sight tower assembly and sling loop German HK cocking tube assembly complete German HK trunnion with magwell section attached to the demilled...
    HKP-19477
    Now: $1,449.99
    Was: $1,929.95
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    Now: $1,449.99
    Was: $1,929.95
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  • Out Of Stock
    New - H&K HK USP Control Decock Only V4 Safety Lever - HKP-01417

    HK USP Control Decock Only V4 Safety Lever

    H&K Heckler & Koch

    $44.95
    H&K HK USP Control Decock Only V4 Safety Lever Lever for left-handers to have the de-cocker (no safety) function. The control lever fits on the right side of the frame. Compatible With: HK USP 9mm HK USP 40 S&W HK USP 45 ACP  
    HKP-01417
    $44.95
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  • Out Of Stock
    New - HKP HK 416/MR556 Short Quad Rail - HKP-17984

    HK416, MR556 Quad Rail - Short

    HKP HK Parts

    $249.95
    HKP HK 416/MR556 Short Quad Rail  
    HKP-17984
    $249.95
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  • New - H&K G36/SL8 (5.56/.223) Bolt Catch Spring - HKP-01861
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    HK G36, SL8 Bolt Catch Spring

    H&K Heckler & Koch

    $9.95
    HK German G36 & SL8 Bolt Catch Spring  
    HKP-01861
    $9.95
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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
    HKP HK Parts Extended Paddle Magazine Release for HK UMP 9mm, .40 S&W, .45 ACP Billeted alloy UMP magazine release. This is a very common repair and replacement part as they are fairly easy to break on the UMP lower. With this new metal mag release...
    HKP-17919
    $34.95
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  • Out Of Stock
    New - H&K UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Index Plate Compression Spring - HKP-16496

    HK UMP, USC, G36, SL8 Compression Spring - Index Plate

    H&K Heckler & Koch

    $7.95
    H&K UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Index Plate Compression Spring
    HKP-16496
    $7.95
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  • Out Of Stock
    New - MM HK 21 (7.62x51/.308) Belt Box Adapter - HKP-01844 HK 21 Ammunition Belt Box Adapter

    HK 21 Ammunition Belt Box Adapter

    Michaels Machines

    $274.95
    Belt Box Adapter A new custom-made adapter - allows you to use HK German factory HK21E belt boxes on the HK21 older style or original style belt feds. It is a drop-in design that will enable easy and quick use of the superior HK21E belt boxes...
    HKP-01844
    $274.95
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    $274.95
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