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 UMP/USC (.40 S&W/.45 ACP/9mm) Front Sight - HKP-00254 HK UMP, USC Front Sight - 9mm / .40 S&W / .45 ACP
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    HK UMP, USC Front Sight - 9mm / .40 S&W / .45 ACP

    H&K Heckler & Koch

    $14.95
    New HK German Factory USC/UMP Front Sight This is a common wear or breakage part. This part is easy to swap out by just knocking out the roll pin, replacing it, and then re-inserting the roll pin. This is a common wear or breakage part. Compatible with...
    HKP-00254
    $14.95
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  • On Sale
    New - Raddlock HK 91/G3 (7.62x51/.308) Magazine Block - 10 Round - HKP-02443 HK91, G3 Magazine Block - 20 to 10 Round Conversion
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    HK91, G3 Magazine Block - 20 to 10 Round Conversion

    Raddlock

    Now: $5.95
    Was: $9.95
    HK 91, G3, & PTR 10 Round Magazine Plug The Raddlock magazine plug is designed to be installed in a 20-round magazine to limit the capacity to 10 rounds for restricted capacity states.  Compatible with both aluminum and steel magazines. We...
    HKP-02443
    Now: $5.95
    Was: $9.95
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    Was: $9.95
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  • Used - H&K 91/G3 (7.62x51/.308) Complete F/A Bolt Group - Used - HKP-00356
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    HK91, G3 Complete F/A Bolt Group - Used

    H&K Heckler & Koch

    $259.95
    HK Factory German G3, 91, PTR F/A Bolt Group - Complete Used Everything you need as a spare or a direct replacement of your existing bolt group. This bolt group is a direct replacement of all HK G3, HK91, SAR3/8, PTR-91, C91, Clones, Etc.  Bolt...
    HKP-00356
    $259.95
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    $259.95
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  • New - HKP HK 91/G3 (7.62x51/.308) Clubfoot Stock - HKP-01920 HK91, G3 Clubfoot Stock
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    HK91, G3 Clubfoot Stock

    HKP HK Parts

    $299.95
    HK Clubfoot Stock HK clubfoot stock comes fully assembled with both US and German H&K parts. This stock assembly counts as one US-made part toward your 922r compliance. Compatible With:  HK 91 HK G3 PTR-91, 32 Rifles HK .308 Rifles Other...
    HKP-01920
    $299.95
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  • New - H&K HK USP/USPC Lanyard Loop Insert - HKP-01935 HK USP, USP Compact Lanyard Loop Insert
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    HK USP, USP Compact Lanyard Loop Insert

    H&K Heckler & Koch

    $13.95
    HK USP/USPC Lanyard Loop Insert Compatible With: HK USP 9mm HK USP .40 HK USP Compact 9mm HK USP Compact .40 / .357 HK USP Compact .45
    HKP-01935
    $13.95
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  • New - H&K HK MR762/417 Take Down Tool - HKP-14438
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    HK417, MR762 Take Down Tool

    H&K Heckler & Koch

    $9.95
    H&K HK MR762/417 Take Down Tool This item is used to take down the upper receiver from the lower receiver as well as tighten down the stock movement on the E1/E2 stock. Each tool will be stored in the rear of the E1/E2 stock and may come in black or...
    HKP-14438
    $9.95
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  • Used - H&K 91/G3 (7.62x51/.308) Wood Stock w/ Enhanced Buffer Installed - HKP-16697 HK91, G3 Wood Stock with Enhanced Buffer Installed
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    HK91, G3 Wood Stock with Enhanced Buffer Installed

    H&K Heckler & Koch

    $229.95
    HK German G3, 91, PTR Wood Stock With- Enhanced DMR Buffer Installed Each stock includes: Metal Backplate With Recoil Spring Installed Modified by our HK gunsmith and an enhanced heavy buffer has been installed Heavy Buffer Assembly Complete Wood Stock...
    HKP-16697
    $229.95
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  • New - RCM HK 53 Locking Piece #3 - 58 Degree - HKP-02523 HK53 Locking Piece #3 - 58 Degree
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    HK53 Locking Piece #3 - 58 Degree

    RCM

    $49.99
    RCM HK 53 Locking Piece #3 - 58 Degree This is the proper locking piece for the HK33K and HK53 firearms as well as some HK51 builds.
    HKP-02523
    $49.99
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    $49.99
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  • New - H&K MP5 Magazine Release Set - HKP-02402 HK MP5 Magazine Release Set
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    HK MP5 Magazine Release Set

    H&K Heckler & Koch

    $184.95
    H&K Magazine Release Set This is the complete magazine release kit that includes both the paddle mag release and standard left-to-right mag release on your HK 9mm rifle or pistol build.  Compatible With: MP5, MP5K style 9mm models Set...
    HKP-02402
    $184.95
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    $184.95
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  • New - MP5, SP5 - A2 Fixed Stock-Green - HKP-18804 MP5, SP5 - A2 Fixed Stock-Green
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    MP5, SP5 - A2 Fixed Stock-Green

    Michaels Machines

    $199.95
    MP5 A2 Fixed Stock - USA - OD GREEN Each stock counts as one US made 922r compliant part. Simply the best US made MP5 stock featuring a rubberized backplate that reduces felt recoil as well as carrier abuse. Ideal for use with +P ammunition or MP5 40/10...
    HKP-18804
    $199.95
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    $199.95
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  • New - RCM HK21 & HK11 Trunnion - HKP-21609 HK21, HK11 Trunnion
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    HK21, HK11 Trunnion

    RCM

    $274.95
    RCM HK21 Trunnion When RCM set out to make a replacement trunnion for the venerable HK21, they started the process by putting a factory unit through rigorous destructive metal testing.  The end-product: a US-made trunnion blending the proper...
    HKP-21609
    $274.95
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  • New - Magpul/HKP HK SP5K ACR Stock - HKP-20826-M HK MP5K, SP5K ACR Stock with Adapter
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    HK MP5K, SP5K ACR Stock with Adapter

    Magpul

    $579.95
    HK SP5K ACR Stock  Our aircraft-grade aluminum SP5K ACR adapter is now offered in this combo stock unit. Pre-installed and ready to drop in. With this SP5K ACR combo stock you will add the capability of an adjustable cheek rest and length of pull...
    HKP-20826-M
    $579.95
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    $579.95
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