HK MP5/SP5 Receivers / Uppers

HK MP5/SP5 Receivers / Uppers

Upgrade your MP5K, SP5K, or clone with a premium receiver or upper. Select from genuine HK parts, high-quality US-made options, and custom receivers for specialized builds.

 

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  • HKP MP5, HK94 Case Deflector Rivet

    HKP MP5, HK94 Case Deflector Rivet

    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
    Qty in Cart: 0
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    $1.95
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  • Out Of Stock
    B&T MP5, MP5K - Low Profile Scope Mount B&T MP5, MP5K - Low Profile Scope Mount

    B&T MP5, MP5K - Low Profile Scope Mount

    B&T Brugger & Thomet

    $119.95
    B&T MP5, MP5K - Low Profile Scope Mount B&T low profile scope mount, Compatible With: HK MP5 SP5 MP5K SP5K Specifications: Color: Black Height max: 30.7 mm Length max: 84 mm Length of top rail: 84 mm Material: Aluminum NATO Accessory Rails:...
    HKP-16875
    $119.95
    Qty in Cart: 0
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    $119.95
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  • Choate MP5 & HK94 End Cap & Sling Swivel Choate MP5 & HK94 End Cap & Sling Swivel

    Choate MP5 & HK94 End Cap & Sling Swivel

    Choate

    $36.95
    Choate MP5 & HK94 End Cap and Sling Swivel 100% US-made MP5 and HK94 end cap features an extra thick heavy-duty rubber buffer that is replaceable with a simple screwdriver. Each HK end cap also features a sling swivel for use with all types of slings...
    HKP-00115
    $36.95
    Qty in Cart: 0
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  • HKP Spare Buffer For Folding Stocks & End Caps HKP Spare Buffer For Folding Stocks & End Caps

    HKP Spare Buffer For Folding Stocks & End Caps

    HKP HK Parts

    $9.95
    HKP Spare Buffer For Folding Stocks & End Caps New US manufactured flat style "H"buffer to replace the factory HK buffer on MP5K folding stocks and end caps. As well as a spare or replacement buffer for the MP5 & MP5K folding B&T stocks. Made...
    HKP-17886
    $9.95
    Qty in Cart: 0
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    $9.95
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  • LSC MP5 9mm Receiver Flat LSC MP5 9mm Receiver Flat

    LSC MP5 9mm Receiver Flat

    LSC

    $199.95
    MP5 Receiver Flat - LSC LSC HK MP5 receiver flat is the most in spec flat that has ever been available. The best option for your HK German parts kit build. This flat is considered by many to be most sought after HK flat available on the market and...
    HKP-20555
    $199.95
    Qty in Cart: 0
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    $199.95
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  • HKP HK MP5 9mm Receiver Flat with Weldment Set HKP HK MP5 9mm Receiver Flat with Weldment Set

    HKP HK MP5 9mm Receiver Flat with Weldment Set

    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
    Qty in Cart: 0
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    $219.95
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  • Out Of Stock
    B&T MP5, MP5K Low Profile Mount, Extended T1/T2 B&T MP5, MP5K Low Profile Mount, Extended T1/T2

    B&T MP5, MP5K Low Profile Mount, Extended T1/T2

    B&T Brugger & Thomet

    $159.95
    B&T MP5, MP5K Low Profile Mount, Extended T1/T2 Compatible With: Aimpoint T1/H1 & T/1/T2 style red dots such as the Vortex Viper, etc Specifications: Color: Black Height max: 23.5 mm Length max: 138 mm Length of top rail: 138 mm Material:...
    HKP-16876
    $159.95
    Qty in Cart: 0
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    $159.95
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  • HKP MP5/HK94 Complete Weldment Set For Receiver Flat

    HKP MP5/HK94 Complete Weldment Set For Receiver Flat

    HKP HK Parts

    $59.95
    HKP MP5/HK94 Complete Weldment Set For Receiver Flat This is the finest, most correct weldment set for your HK MP5, 94 project available.  Each Weldment Kit Contains: 1x Semi Auto Shelf Hanger Block 1x Rear stock bushing 1x Scope mounting piece 1x...
    HKP-01453
    $59.95
    Qty in Cart: 0
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  • PTR HK MP5 Flat Receiver w/ Weldment Set PTR HK MP5 Flat Receiver w/ Weldment Set

    PTR HK MP5 Flat Receiver w/ 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
    Qty in Cart: 0
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    $294.95
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  • H&K Magazine Catch - MP5, MP5K - Latest Style H&K Magazine Catch - MP5, MP5K - Latest Style

    H&K Magazine Catch - MP5, MP5K - Latest Style

    H&K Heckler & Koch

    $64.95
    H&K Magazine Catch - Latest Style Genuine HK mag release for factory and clone firearms.  This component often resolves issues with mags not locking into position on HK clones and builds.  Constructed from a single piece of steel unlike the...
    HKP-00911
    $64.95
    Qty in Cart: 0
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  • Cartridge Case Deflector, Shell Deflector - MP5, MP5K - Billet

    Cartridge Case Deflector, Shell Deflector - MP5, MP5K - Billet

    HKP HK Parts

    $14.95
    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
    $14.95
    Qty in Cart: 0
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    $14.95
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  • HKP SP5K 9mm Drop In Paddle Mag Release Upgrade Kit HKP SP5K 9mm Drop In Paddle Mag Release Upgrade Kit

    HKP SP5K 9mm Drop In Paddle Mag Release Upgrade Kit

    HKP HK Parts

    $74.95
    HK SP5K Anti-Rattle Roller Tipped "Paddle" Magazine Release Install Kit No modifications, no refinishing...complete drop-in kit included. New USA made busing for a drop-in install kit for the HK SP5K. This kit will allow any end-user to quickly,...
    HKP-18192
    $74.95
    Qty in Cart: 0
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    $74.95
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  • LSC/PTR Receiver Flat- MP5 9mm LSC/PTR Receiver Flat- MP5 9mm

    LSC/PTR Receiver Flat- MP5 9mm

    LSC

    $239.95
    MP5 Receiver Flat - PTR/LSC New PTR 9mm Receiver Flat made on the original LSC tooling. This flat is considered by many to be the most sought-after HK flat available on the market and perfect for that HK custom build. This item is not considered an FFL...
    HKP-01431
    $239.95
    Qty in Cart: 0
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  • HKP MP5 End Cap with Sling Swivel HKP MP5 End Cap with Sling Swivel

    HKP MP5 End Cap with Sling Swivel

    HKP HK Parts

    $84.95
    HK Alloy Pistol End Cap with Sling Swivel Made from solid billet aircraft grade aluminum with the HK German sling loop and rubber heavy duty H buffer. With the alloy construction this unit will not break like the plastic end caps.  Compatible...
    HKP-18138
    $84.95
    Qty in Cart: 0
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    $84.95
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  • H&K MP5, HK94 Case Deflector Rivet H&K MP5, HK94 Case Deflector Rivet

    H&K 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
    Qty in Cart: 0
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    $9.95
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  • Choate HK MP5 QD End Cap with Buffer - Black Choate HK MP5 QD End Cap with Buffer - Black

    Choate HK MP5 QD End Cap with Buffer - Black

    Choate

    $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 top condition for years to come. Machined aircraft...
    HKP-20118
    $99.95
    Qty in Cart: 0
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    $99.95
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  • Out Of Stock
    H&K MP5, MP5K Case Deflector H&K MP5, MP5K Case Deflector

    H&K 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 the extraction of the 9mm round. HK MP5, 94 HK...
    HKP-00871
    $0.00
    Qty in Cart: 0
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    $0.00
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  • B&T MP5, SP5, 94, K - Mid Range Scope Mount B&T MP5, SP5, 94, K - Mid Range Scope Mount

    B&T MP5, SP5, 94, K - Mid Range Scope Mount

    B&T Brugger & Thomet

    $119.95
    B&T MP5, SP5, 94 - Mid Range Scope Mount Includes a witness hole so you can use iron sights with the mount installed. B&T Switzerland is a world leader in arms innovation. This same mount is in use by several militaries around the world. Buy with...
    HKP-16877
    $119.95
    Qty in Cart: 0
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    $119.95
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  • HKP MP5 40/10 Receiver Flat HKP MP5 40/10 Receiver Flat

    HKP MP5 40/10 Receiver Flat

    HKP HK Parts

    $399.95
    MP5 40 & MP5 10mm Reciever 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
    $399.95
    Qty in Cart: 0
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    $399.95
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  • HKP HK MP5 9mm Receiver Flat HKP HK MP5 9mm Receiver Flat

    HKP HK MP5 9mm Receiver Flat

    HKP HK Parts

    $189.95
    HKP HK MP5 9mm Receiver Flat New MP5 receiver flat made by the original German tool and die maker of the LSC receiver flat utilizing factory original German prints and specifications. The creator of our receiver flat has been regarded as the premier flat...
    HKP-20921
    $189.95
    Qty in Cart: 0
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    $189.95
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  • H&K MP5 Rear Receiver Section

    H&K 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 the actual demilled section of an MP5 receiver...
    HKP-02167
    $14.95
    Qty in Cart: 0
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    $14.95
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  • HKP HK MP5 Rear Receiver Section

    HKP HK MP5 Rear Receiver Section

    H&K Heckler & Koch

    $24.95
    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
    $24.95
    Qty in Cart: 0
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    $24.95
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  • H&K MP5 & SP5 A1 End Cap With Sling Swivel H&K MP5 & SP5 A1 End Cap With Sling Swivel

    H&K MP5 & SP5 A1 End Cap With Sling Swivel

    H&K Heckler & Koch

    $139.99
    HK German MP5 & SP5 A1 End Cap With Sling Swivel The MP5 end cap allows the user to add a single-point sling. Perfect for a pistol build or a lower profile setup. Made by HK Germany.  Compatible With: HK MP5 HK SP5 HK94 MP5 clones and other...
    HKP-00114
    $139.99
    Qty in Cart: 0
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    $139.99
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  • DTAC HK MP5SD Front End Kit DTAC HK MP5SD Front End Kit

    DTAC HK MP5SD Front End Kit

    DTAC Dakota Tactical

    $1,199.95
    Dakota Tactical HK MP5SD Front End Kit If you have wanted to convert that MP5 or SP5 to an SD but didn't know where to start, look no further.  Our kit provides all necessary components (aside from suppressor) to do so. With a DTAC Cage and SD guard...
    HKP-21318
    $1,199.95
    Qty in Cart: 0
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    $1,199.95
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  • B&T HK MP5/MP5K QD/QO Brass Catcher B&T HK MP5/MP5K QD/QO Brass Catcher

    B&T HK MP5/MP5K QD/QO Brass Catcher

    B&T Brugger & Thomet

    $264.95
    B&T HK MP5/MP5K QD/QO Brass Catcher Works with HK MP5 only with the BT-21358 handguard or for the BT-21573 handguard for the MP5K. Compatible With: HK MP5/MP5K HK SP5/HK SP5K Clones
    HKP-21315
    $264.95
    Qty in Cart: 0
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    $264.95
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  • HKP MP5 9mm Reverse Stretch Pistol Build Kit - Complete

    HKP MP5 9mm Reverse Stretch Pistol Build Kit - Complete

    HKP HK Parts

    $1,874.95
    MP5 Reverse Stretch 9mm Pistol Build Kit Complete - German & USA Made Parts MP5-RS 9mm parts kit complete with all the parts needed for an MP5 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance parts to be legal as a pistol,...
    HKP-17121
    $1,874.95
    Qty in Cart: 0
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    $1,874.95
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  • B&T MP5, 94 Low Mount, Extra Long Scope Rail B&T MP5, 94 Low Mount, Extra Long Scope Rail

    B&T MP5, 94 Low Mount, Extra Long Scope Rail

    B&T Brugger & Thomet

    $239.95
    B&T MP5, 94 Low Mount, Extra Long Scope Rail Swiss made, military grade, B&T MP5 extra long low-profile scope mount. Requires the removal of the MP5 rear sight. Provides the longest possible Picatinny rail. Specifications: Color: Black Height...
    HKP-16881
    $239.95
    Qty in Cart: 0
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    $239.95
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  • B&T MP5SD Brass Catcher For Use With SD B&T Forearm B&T MP5SD Brass Catcher For Use With SD B&T Forearm

    B&T MP5SD Brass Catcher For Use With SD B&T Forearm

    B&T Brugger & Thomet

    $209.95
    B&T MP5SD Brass Catcher For Use With SD B&T Forearm   B&T brass catcher QD/QO polymer for HK MP5SD. This only works only with handguard BT-21343.
    HKP-18099
    $209.95
    Qty in Cart: 0
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    $209.95
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  • HKP QD End Cap with Buffer - SP5 HKP QD End Cap with Buffer - SP5

    HKP QD End Cap with Buffer - SP5

    HKP HK Parts

    $99.95
    HK SP5 - Quick Detach End Cap With this SP5 QD end cap upgrade you will get a heavier buffer to internally protect your firearm and keep your bolt carrier in tip top condition for years to come. Machined aircraft grade aluminum and Cerakoted for the best...
    HKP-20757
    $99.95
    Qty in Cart: 0
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    $99.95
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  • B&T MP5 Mount For Trijicon 1X24 Reflex B&T MP5 Mount For Trijicon 1X24 Reflex

    B&T MP5 Mount For Trijicon 1X24 Reflex

    B&T Brugger & Thomet

    $152.95
    B&T MP5 Mount for Trijicon 1X24 Reflex Low profile mount for HK MP5 with Trijicon RX01m 1x24 Specifications: Color: Black Width max: 42.5 mm Length max: 125.5 mm Height max: 25.8 mm Material: Aluminum & steel Treatment: Hartcoat anodized &...
    HKP-16863
    $152.95
    Qty in Cart: 0
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    $152.95
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  • Out Of Stock
    TBR HK MP5 Top Mount Brass Catcher for MFI Rails - FDE TBR HK MP5 Top Mount Brass Catcher for MFI Rails - FDE

    TBR HK MP5 Top Mount Brass Catcher for MFI Rails - FDE

    TBR Tactical Brass Recovery

    $219.95
    TBR HK MP5 Top Mount Brass Catcher for MFI Rails - FDE MP5 model for MFI rail equipped guns.
    HKP-19148
    $219.95
    Qty in Cart: 0
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    $219.95
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