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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  • New - HKP Rear Stock Pin Bushing Weldment - HKP-17573
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    HK Stock Pin Bushing Weldment

    HKP HK Parts

    $3.95
    HK Stock Push Pin Bushing Weldment All-steel stock pin bushing weldment for welding in the rear of the flat. This bushing welds into the folded flat and guides the large push pin through the receiver to hold the stock to the receiver. Compatible...
    HKP-17573
    $3.95
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  • New - HKP MP5 Replacement Buffer for Folding Stock or End Cap - HKP-18735-M HK MP5 Replacement Buffer - Folding Stock or End Cap
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    HK MP5 Replacement Buffer - Folding Stock or End Cap

    HKP HK Parts

    $3.49
    HKP MP5 Replacement Buffer for Folding Stock or End Cap Spare replacement buffer for choate folding stocks or end caps. Compatible With: Choate MP5 and MP5K Stocks or End Caps (NOT compatible with MP5 .22 LR)
    HKP-18735-M
    $3.49
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  • New - H&K Barrel Retaining Pin - 5mm Standard Size - HKP-00071 HK Barrel Pin Retaining - 5mm - Standard Size
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    HK Barrel Pin Retaining - 5mm - Standard Size

    H&K Heckler & Koch

    $9.95
    H&K HK Pin - Barrel - Retaining - 5mm - Standard Size Barrel Retaining Pin Each barrel pin is used for installing a new or replacement barrel. HK suggest using a new factory barrel pin when installing or reinstalling a HK barrel. We also offer the HK...
    HKP-00071
    $9.95
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  • New - HKP MP5, HK94 Case Deflector Rivet - HKP-18008
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    HK MP5, HK94 Case Deflector Rivet - US

    HKP HK Parts

    $1.95
    HKP MP5, HK94 Case Deflector Rivet Each case deflector will require 2 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. These are a factory correct rivet that...
    HKP-18008
    $1.95
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  • New - H&K Oversized Barrel Retaining Pin - 5.25mm - HKP-16954
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    HK Oversized Barrel Retaining Pin - 5.25mm

    H&K Heckler & Koch

    $9.95
    H&K Oversized Barrel Retaining Pin - 5.25mm 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...
    HKP-16954
    $9.95
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  • New - HKP Paddle Style Extended Mag Release - EMR - HKP-17079 HK MP5, MP5K, G3, HK93 Paddle Magazine Release - Extended - EMR
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    HK MP5, MP5K, G3, HK93 Paddle Magazine Release - Extended - EMR

    HKP HK Parts

    $44.95
    HKP HK Parts Paddle Style Extended Magazine Release with EMR for HK MP5, HK G3, HK 33 and more A great addition to any paddle style mag release, such as those found on an HK. The extended mag release is machined from a solid billet of aircraft grade...
    HKP-17079
    $44.95
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  • New - H&K Cocking Tube Hanger Clip - HKP-00349 HK MP5, MP5K, HK33, HK53, HK93, HK91, G3 Cocking Tube Hanger Clip
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    HK MP5, MP5K, HK33, HK53, HK93, HK91, G3 Cocking Tube Hanger Clip

    H&K Heckler & Koch

    $13.95
    Heckler and Koch Cocking Tube Hanger Clip The HK cocking tube support hanger is the part that welds onto the end of the cocking tube that allows the forearm to install with the use of a small push pin. New HK German factory manufactured. Ready to weld...
    HKP-00349
    $13.95
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  • New - HKP Semi Shelf Weldment - Metal Grip Housing - HKP-16657 HK Semi Shelf Weldment - Metal Grip Housing
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    HK Semi Shelf Weldment - Metal Grip Housing

    HKP HK Parts

    $14.95
    HKP Semi Shelf Weldment Metal Grip Housing For Semi-Auto Trigger Packs This HK German specification metal trigger frame weldment is designed for converting SEF style housings from full auto to semi-auto. This weldable block or shelf is essential for...
    HKP-16657
    $14.95
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  • New - H&K Full Auto Paddle Magazine Release Bushing - HKP-00847
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    HK MP5, HK33 HK53, HK93 Paddle Mag Release Bushing - Full Auto

    H&K Heckler & Koch

    $6.95
    Heckler and Koch New Full Auto Paddle Magazine Release Bushing for HK MP5 and HK90 New HK German paddle magazine release bushing for all 90 series HK weapon systems. Used for installing a paddle mag release. Please Note: This is NOT for use on...
    HKP-00847
    $6.95
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  • New - HKP Picatinny Rail For HK Receivers - 17 Slot - HKP-01446 HK Picatinny Rail For HK Receivers - 17 Slot
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    HK Picatinny Rail For HK Receivers - 17 Slot

    HKP HK Parts

    $69.95
    HKP Picatinny Rail For HK Receivers - 17 Slot Mil-Spec all steel Picatinny rail in the white. Relief cut for HK receivers and made for mounting scopes and optics to HK builds. This unit easily welds to the top of your HK receiver. Compatible With: HK...
    HKP-01446
    $69.95
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  • New - Semi Auto Shelf For Receiver - Billeted - HKP-01521
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    Receiver Shelf - Semi Auto - Billeted

    $19.95
    Semi Auto Shelf for Receiver - Billeted HK Semi Auto Shelf milled from one solid billet to HK's factory specifications (no castings here). This is the needed receiver shelf that is welded to the receiver to allow the use of the clipped & pinned...
    HKP-01521
    $19.95
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  • New - H&K Magazine Catch, Push Button Roll Pin - HKP-01918
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    HK MP5, HK90 Series Magazine Catch Roll Pin - Push Button

    H&K Heckler & Koch

    $4.95
    Heckler and Koch Magazine Catch, Push Button Roll Pin New HK German-made. The mag catch roll pin is used to attach the magazine catch to the mag release button. Compatible With: MP5, SP5 MP5K, SP5K SP89, HK94 HK91, G3, PTR HK33, HK53,...
    HKP-01918
    $4.95
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