MP5 / SP5 Receivers / Uppers

MP5 / SP5 Receivers / Uppers

Upgrade your MP5/SP5 with high-quality H&K receivers and uppers. Designed for superior fit and function, these critical parts ensure your MP5/SP5 build or upgrade is reliable and accurate. Browse our selection of H&K MP5/SP5 receivers and uppers for the best performance.

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  • Out Of Stock
    New - HKP MP5 & MP5K 9mm Anti-Rattle Roller Tipped Paddle Magazine Release - HKP-17570 HK MP5, MP5K Paddle Magazine Release - Anti-Rattle Roller Tipped - 9mm

    HK MP5, MP5K Paddle Magazine Release - Anti-Rattle Roller Tipped - 9mm

    HKP HK Parts

    $29.47
    HKP HK Parts 9mm Anti-Rattle Roller Tipped Paddle Magazine Release for HK MP5 and MP5K Latest generation paddle mag release for all 9mm MP5, MP5K style builds. Made to the latest German specs, materials, and design.  Compatible...
    HKP-17570
    $29.47
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  • New - HKP HK MP5 9mm Receiver Flat with Weldment Set - HKP-20920 HK MP5 Receiver Flat with Weldment Set - 9mm
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    HK MP5 Receiver Flat with Weldment Set - 9mm

    HKP HK Parts

    $219.95
    HKP HK MP5 9mm Receiver Flat with Weldment Set New MP5 receiver flat and weldment set combined for the best complete build option on the market. Made by the original German tool and die maker of the LSC receiver flat utilizing factory original German...
    HKP-20920
    $219.95
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  • New - RCM MP5 9mm Trunnion - HKP-01193 HK MP5 Trunnion - 9mm
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    HK MP5 Trunnion - 9mm

    RCM

    $64.95
    RCM MP5 9mm Trunnion US made to exact factory HK specifications and machined completely from ordnance grade steel and heat treated to factory specs.  Compatible With: MP5, 94 MP5K SP89 Clones or other custom builds
    HKP-01193
    $64.95
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  • Used - PTR HK MP5 Flat Receiver w/ Weldment Set - HKP-19509 HK MP5 Receiver Flat with Weldment Set
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    HK MP5 Receiver Flat with Weldment Set

    PTR

    $294.95
    MP5 9mm Receiver Flat With Complete Weldment & Rivet Set - PTR/LSC Several years ago PTR bought out LSC and now owns the tooling and dyes for the LSC 9mm flats. These elusive flats have been hard to find and are now available for the first time here...
    HKP-19509
    $294.95
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  • New - HKP HK MP5 Extended Magazine Release - EMR - Streamline - HKP-22175-M HK MP5 Magazine Release - Extended Streamline - EMR
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    HK MP5 Magazine Release - Extended Streamline - EMR

    HKP HK Parts

    $44.95
    HKP HK Parts Extended Magazine Release - EMR - Streamline for HK MP5   Elevate your paddle style mag release with the streamlined extended mag release. Crafted from a solid billet of aircraft-grade aluminum and featuring a hard anodized finish,...
    HKP-22175-M
    $44.95
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  • New - Cartridge Case Deflector, Shell Deflector - MP5, MP5K - Billet - HKP-17574
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    HK MP5, MP5K Cartridge Case Deflector, Shell Deflector - Billet

    HKP HK Parts

    $19.95
    Cartridge Case Deflector, Shell Deflector - MP5, MP5K - Billet New US made case deflector for receiver flat or receiver for all MP5, HK94, MP5K, & SP89 builds. The case deflector is riveted or welded in place on the ejection port of the 9mm receiver...
    HKP-17574
    $19.95
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  • New - HKP MP5, MP5K Scope Tab - Weldment - HKP-17503
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    HK MP5, MP5K Scope Tab - Weldment

    HKP HK Parts

    $9.95
    MP5, MP5K Sight Tab - Weldment HK MP5, MP5K 17-4 Stainless H900 rear sight tab. The most correct MP5, MP5K rear sight base available. If you want your build to look as factory correct as possible then this sight base is an absolute must. Compatible...
    HKP-17503
    $9.95
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    New - H&K Barrel Retaining Pin - 5.15mm - HKP-01662 HK Barrel Retaining Pin - 5.15mm

    HK Barrel Retaining Pin - 5.15mm

    H&K Heckler & Koch

    $14.95
    H&K Barrel Retaining Pin - 5.15mm This is the barrel pin used for installing a new or replacement barrel. HK suggests using a new factory barrel pin when installing or reinstalling an HK barrel in the trunnion. Each pin is slightly oversized for...
    HKP-01662
    $14.95
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  • New - H&K MP5, HK94 Case Deflector Rivet - HKP-00147 HK MP5, HK94 Case Deflector Rivet
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    HK MP5, HK94 Case Deflector Rivet

    H&K Heckler & Koch

    $9.95
    H&K MP5, HK94 Case Deflector Rivet Each case deflector, US or German-made, will require two rivets to attach the case deflector to the receiver or flat. If you want the factory look and feel of doing it right, these rivets are a must-have. These are...
    HKP-00147
    $9.95
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  • New - H&K MP5 & MP5K 9mm Anti-Rattle Roller Tipped "Paddle" Magazine Release - HKP-00117 HK MP5, MP5K Magazine Release Paddle - Anti-Rattle Roller-Tip - 9mm
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    HK MP5, MP5K Magazine Release Paddle - Anti-Rattle Roller-Tip - 9mm

    H&K Heckler & Koch

    $64.95
    Heckler and Koch Anti-Rattle Roller Tipped "Paddle" Magazine Release for HK MP5, MP5K Factory German made Paddle mag release for all 9mm MP5, MP5K HK builds. Our parts are made by HK in Germany and are factory-fresh production. Compatible With: MP5,...
    HKP-00117
    $64.95
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  • On Sale
    New - HKP MP5 40/10 Receiver Flat - HKP-00767 HK MP5 Receiver Flat - .40 S&W, 10mm
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    HK MP5 Receiver Flat - .40 S&W, 10mm

    HKP HK Parts

    Now: $194.95
    Was: $399.95
    MP5 40 & MP5 10mm Receiver Flat - USA The new and latest production with the weldment locations is already lasered and ready to go. This flat is the finest available for the MP5 40/10 family of firearms. Compatible With: MP5 .40 Cal MP5 10mm MP5 ...
    HKP-00767
    Now: $194.95
    Was: $399.95
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  • New - H&K MP5 Magazine Release Set - HKP-02402 HK MP5, MP5K Magazine Release Set
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    HK MP5, MP5K Magazine Release Set

    H&K Heckler & Koch

    $184.95
    Heckler and Koch Magazine Release Set for HK MP5 and HK MP5K 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.  Set...
    HKP-02402
    $184.95
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