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 - HKP HK MR556/416 SS Firing Pin - HKP-01756
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    HK416, MR556 SS Firing Pin

    HKP HK Parts

    $29.95
    Firing Pin For HK 416 & MR556 Firearm - USA Made from hardened stainless steel and comes new in the white. Compatible With: HK416 HK MR556 HK CR556 HK M27
    HKP-01756
    $29.95
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  • New - H&K HK416/MR556 Steel Maritime Magazine Follower - HKP-15452 HK416, MR556 Magazine Follower - Steel Maritime
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    HK416, MR556 Magazine Follower - Steel Maritime

    H&K Heckler & Koch

    $14.95
    H&K HK MR556/416 Steel Maritime Magazine Follower Compatible With: HK 416 factory magazines such as 30, 20 and 10 round
    HKP-15452
    $14.95
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    $14.95
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  • New - H&K HK G36 Right Side Lower Hammer Spring - HKP-01857
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    HK G36 Right Side Lower Hammer Spring

    H&K Heckler & Koch

    $8.95
    HK G36 Right Side Lower Hammer Spring  
    HKP-01857
    $8.95
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    $8.95
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  • New - H&K G36/SL8 (5.56/.223) Forearm Original Version - HKP-01936
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    HK G36/SL8 (5.56/.223) Handguard Original Version

    H&K Heckler & Koch

    $106.95
    German HK G36 & HK SL8 Black Forearm- 1st Gen  This part is the older style 1st gen that has the bipod grove to allow the factory HK bipod to be installed. New HK black in color without a heat shield. No longer in production...
    HKP-01936
    $106.95
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    $106.95
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  • New - HKP HK G36/SL8 (5.56/.223) Cocking Handle - HKP-18251 HK G36, SL8  Cocking Handle
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    HK G36, SL8 Cocking Handle

    HKP HK Parts

    $49.95
    Cocking Handle For G36 & SL8 Bolt Carriers - USA New USA made charging handle ideal for a 922 replacement part. Made in the USA.
    HKP-18251
    $49.95
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  • New - H&K UMP (.40 S&W/.45 ACP/9mm) Lower Bolt Carrier Guide - HKP-16500 HK UMP Bolt Carrier Guide
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    HK UMP Bolt Carrier Guide

    H&K Heckler & Koch

    $12.95
    HK German All Steel UMP Carrier Guide This is the steel piece the guides the UMP bolt carrier. Compatible With: All HK UMP lowers
    HKP-16500
    $12.95
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  • Used - H&K UMP (.40 S&W) Parts Kit - German - Used - HKP-00588 HK UMP Parts Kit - .40 S&W
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    HK UMP Parts Kit - .40 S&W

    H&K Heckler & Koch

    $1,829.95
    HK German UMP .40 Cal Parts Kit - Used HK UMP .40 German parts kit complete with all the factory HK parts minus the receiver. Perfect for those who are doing a custom build or for spare parts. Click this link to complete your build with an S5 receiver...
    HKP-00588
    $1,829.95
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    $1,829.95
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  • New - FMP HK 21 (7.62x51/.308) Bolt Carrier - HK Contract w/ FMP - HKP-00566
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    HK21 Bolt Carrier - Stripped

    H&K Heckler & Koch

    $549.95
    HK21 Heckler and Koch Factory FMP Stripped Bolt Carrier New factory surplus. HK Contract with FMP.
    HKP-00566
    $549.95
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  • New - H&K 23E/13E/G43 (7.62x51/.308) & (5.56/.223) Extractor - HKP-00818 HK23E, HK13E, G43 Extractor - 7.62x51 / .308, 5.56 / .223
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    HK23E, HK13E, G43 Extractor - 7.62x51 / .308, 5.56 / .223

    H&K Heckler & Koch

    $119.95
    HK23E & HK13E Extractor New HK German and no longer in production. Compatible With: MM 23E HK 13E
    HKP-00818
    $119.95
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    $119.95
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  • New - RCM HK51K (7.62x51/.308) Barrel - Threaded 15x1 RH - HKP-02392 HK51K Barrel - 7.62 / .308 - 5.3" - Threaded 15x1 RH
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    HK51K Barrel - 7.62 / .308 - 5.3" - Threaded 15x1 RH

    RCM

    $164.95
    RCM HK51K (7.62x51/.308) Barrel - Threaded 15x1 RH Made to exact HK51K specifications from cold hammer forged steel, this barrel matches the quality of HK German barrels. Ideal for custom builds and HK51K style projects. Specifications: Made In The...
    HKP-02392
    $164.95
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    $164.95
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  • Out Of Stock
    New - Beta C-Mag HK 91/G3/MSG90 (7.62x51/.308) 100 Round Drum Magazine - HKP-02293

    HK91, G3 , PTR Magazine - 100 Round Drum

    Beta C-Mag

    $839.95
    Beta C-Mag (7.62x51/.308) 100 Round Drum Magazine Includes C-MAG magazine in 7.62MM,308 G3/HK91 with clear covers, personal loader, black magazine pouch with carry strap, technical/owner's manual, and graphite dry lubricant. No longer in production and...
    HKP-02293
    $839.95
    Out Of Stock
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    $839.95
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  • New - HKP MP5K 40/10 Receiver Flat - HKP-18033 HK MP5K Receiver Flat - 10mm / .40 S&W -
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    HK MP5K Receiver Flat - 10mm / .40 S&W -

    HKP HK Parts

    $199.95
    MP5K-40, MP5K-10 Receiver Flat - USA Receiver Flat for use with a MP5K-40 or MP5K-10mm build. Please note: This is for the flat as picture no weldments are included. ***This US made receiver flat counts as one required 922r compliant part***
    HKP-18033
    $199.95
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    $199.95
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