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
    HK MP5 Barrel Retaining Pin - 5.015mm H&K Heckler & Koch HKP-22284 HK MP5 Barrel Retaining Pin - 5.015mm H&K Heckler & Koch HKP-22284

    HK MP5 Barrel Retaining Pin - 5.015mm

    H&K Heckler & Koch

    $14.95
    H&K 90 Series Barrel Retaining Pin - 5.015mm Each barrel pin is used for installing a new or replacement barrel. HK suggests using a new factory barrel pin when installing or reinstalling an HK...
    HKP-22284
    $14.95
    Qty in Cart: 0
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    $14.95
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  • On Sale
    New - HK MP5 QD End Cap with Buffer - Black - HKP-20118 HK MP5 QD End Cap with Buffer

    HK MP5 QD End Cap with Buffer

    HKP HK Parts

    Now: $47.96
    Was: $99.95
    Quick Detach Steel End Cap With Replaceable Rubber Buffer - HK MP5 With this MP5 QD end cap upgrade you will get a heavier buffer to internally protect your firearm and keep your bolt carrier in tip...
    HKP-20118
    Now: $47.96
    Was: $99.95
    Qty in Cart: 0
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    Now: $47.96
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  • New - HKP MP5, MP5K Rear Sight Base - HKP-02450 HK MP5, MP5K Rear Sight Base

    HK MP5, MP5K Rear Sight Base

    HKP HK Parts

    $19.95
    HKP HK Parts Rear Sight Base - Weldment for HK MP5 and HK MP5K The only factory-correct sight base with the factory HK German side axis grooves.  Compatible With:
    HKP-02450
    $19.95
    Qty in Cart: 0
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    $19.95
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  • Out Of Stock
    Used - H&K MP5, MP5K Case Deflector - HKP-00871 HK MP5, MP5K Case Deflector

    HK MP5, MP5K Case Deflector

    H&K Heckler & Koch

    $0.00
    HK German 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/flat to aid in...
    HKP-00871
    $0.00
    Qty in Cart: 0
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    $0.00
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  • New - HKP MP5 40/10 Bolt Hold Open Weldment Set Complete - HKP-17648

    HK MP5 Weldment Set - .40 S&W, 10mm

    HKP HK Parts

    $189.95
    HKP MP5 40/10 Bolt Hold Open Weldment Set Complete Not offered or available anywhere else. This is the correct weldment set for the MP5 40/10 BHO components. 
    HKP-17648
    $189.95
    Qty in Cart: 0
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    $189.95
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  • Used - H&K HK MP5 Rear Receiver Section - HKP-02147

    HK MP5 Lower Receiver - Section

    H&K Heckler & Koch

    $54.95
    HK MP5 Rear Receiver Section  HK German demilled receiver section with rear sight base as installed at the factory. The rear push pin section is still attached to the demilled receiver section.
    HKP-02147
    $54.95
    Qty in Cart: 0
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    $54.95
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  • New - HKP MP5 40/10 Trunnion - HKP-02737 HK MP5 Trunnion - .40 S&W, 10mm

    HK MP5 Trunnion - .40 S&W, 10mm

    HKP HK Parts

    $139.95
    MP5 40 & MP5 10mm Trunnion Machined from ordnance-grade steel and heat-treated to factory specs. Each has the bullet guides pre-installed and included. These are the best USA-made trunnions on the...
    HKP-02737
    $139.95
    Qty in Cart: 0
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    $139.95
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  • Flat Bending Jig Set For All HK Style Flats - RENTAL HKP HK Parts HKP-19595-RENTAL HK Receiver Flat Bending Set Jig - RENTAL

    HK Receiver Flat Bending Set Jig - RENTAL

    HKP HK Parts

    $99.95
    Flat Bending Jig Set For All HK Style Receiver Flats - RENTAL Receiver flat bending jig RENTAL for all HK receiver flats.  Our rental jigs are crafted in the US
    HKP-19595-RENTAL
    $99.95
    Qty in Cart: 0
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    $99.95
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  • On Sale
    HK MP5, G3, PTR, HK93 Push Button for Magazine Catch H&K Heckler & Koch HKP-22325 HK MP5, G3, PTR, HK93 Push Button for Magazine Catch H&K Heckler & Koch HKP-22325

    HK MP5, G3, HK93 Magazine Catch Push Button- Used

    H&K Heckler & Koch

    Now: $3.71
    Was: $8.95
    H&K MP5, G3, PTR, HK93 Push Button for Magazine Catch - Used   Factory original HK push button replacement part. Limited quantity available.  
    HKP-99316
    Now: $3.71
    Was: $8.95
    Qty in Cart: 0
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    Now: $3.71
    Was: $8.95
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  • New - HKP Front Sight Tower Ambi Sling Attachment Weldment - HKP-17881 HK MP5, MP5K Sling Attachment Weldment - Ambi - Front End

    HK MP5, MP5K Sling Attachment Weldment - Ambi - Front End

    HKP HK Parts

    $14.95
    HKP Front Sight Tower Ambi Sling Attachment Weldment Ambi sling loop that is welled and installed on all MP5F model front sight tower. A great upgrade for that custom build or for those that want to...
    HKP-17881
    $14.95
    Qty in Cart: 0
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    $14.95
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  • New - HKP HK MP5/K Billeted Scope Tab - Weldment - HKP-22063

    HK MP5, MP5K Scope Tab - Billeted - Weldment

    HKP HK Parts

    $9.95
    HKP HK MP5/K Billeted Scope Tab - Weldment Billeted scope tab weldment for HK MP5, MP5K, and compatible clones. Provides a correct mounting point for optics. Compatible With:
    HKP-22063
    $9.95
    Qty in Cart: 0
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    $9.95
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  • Used - H&K MP5 Rear Receiver Section - HKP-02167

    HK MP5 Rear Receiver Section

    H&K Heckler & Koch

    $14.95
    H&K MP5 Rear Receiver Section HK German demilled receiver section with rear sight base as installed at the factory. MP5 & HK94 Factory HK rear sight bases (portion welded to MP5 receiver), you get...
    HKP-02167
    $14.95
    Qty in Cart: 0
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    $14.95
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