HK MP5K/SP5K Series

HK MP5K/SP5K Series

Discover the most comprehensive selection of HK MP5K and SP5K parts at HKP. From bolt carrier groups and barrels to trigger packs and magazines, we provide all the HK parts you need to build, upgrade, or maintain your firearm. Whether you're enhancing your MP5K with 922r compliant parts or looking for the perfect SP5K flash hider, our top-quality components are designed for precision, reliability, and performance. Trust HKP for all your MP5K and SP5K parts and accessories.

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  • HKP MP5 9mm Barrel Extension

    HKP MP5 9mm Barrel Extension

    HKP HK Parts

    $49.95
    HKP MP5 9mm Barrel Extension The MP5 3-lug barrel extension functions as a fake suppressor to give the standard 8.85" barrel an overall length of 16" for rifle builds.  The extension slips over the tri-lug adapter and is pinned into place by a...
    HKP-18000
    $49.95
    Qty in Cart: 0
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    $49.95
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  • HKP HK MP5/K 9mm Knurled Micro Comp - Threaded 1/2x28 RH HKP HK MP5/K 9mm Knurled Micro Comp - Threaded 1/2x28 RH

    HKP HK MP5/K 9mm Knurled Micro Comp - Threaded 1/2x28 RH

    HKP HK Parts

    $26.95
    HKP HK MP5/K 9mm Knurled Micro Comp - Threaded 1/2x28 RH Our new MP5 Micro Comp combines the classic appearance of a factory-style thread protector with enhanced functionality. Extended and slotted, this micro compensator not only preserves the factory...
    HKP-21176
    $26.95
    Qty in Cart: 0
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    $26.95
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  • HKP HK SP5/K 9mm Thread Protector - Threaded 1/2x28 HKP HK SP5/K 9mm Thread Protector - Threaded 1/2x28

    HKP HK SP5/K 9mm Thread Protector - Threaded 1/2x28

    HKP HK Parts

    $19.95
    HKP/H&K SP5/K 9mm Thread Protector - Threaded 1/2x28 An essential replacement thread protector for lost or damaged thread protectors & caps. This part is compatible with all factory specification SP5 barrels. Specifications: Made In The...
    HKP-21375
    $19.95
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  • MI HK MP5K Tri-Rail Handguard MI HK MP5K Tri-Rail Handguard

    MI HK MP5K Tri-Rail Handguard

    MI Midwest Industries

    $149.95
    MI HK MP5K Tri-Rail Handguard   Features: Professional grade one-piece design Tri-Rail 1913 Picatinny on 3 sides for accessory attachment Simple installation, includes all tools Lightweight design Features two anti-rotation QD sling swivel...
    HKP-21486
    $149.95
    Qty in Cart: 0
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    $149.95
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  • Franklin Armory / HKP HK MP5K Binary Trigger Group – 2 Round Engraved Binary Housing Franklin Armory / HKP HK MP5K Binary Trigger Group – 2 Round Engraved Binary Housing

    Franklin Armory / HKP HK MP5K Binary Trigger Group – 2 Round Engraved Binary Housing

    FA Franklin Armory / HKP

    $1,449.95 - $1,499.95
    Franklin Armory / HKP HK MP5K Binary Trigger Group – 2 Round Engraved Binary Housing Our latest and greatest binary trigger group was delivered with a factory HK German housing professionally engraved and painted with a 2-round burst pictograph to...
    HKP-21114-M
    $1,449.95 - $1,499.95
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    $1,449.95 - $1,499.95
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  • H&K MP5K/SP89/SP5K 9mm End Cap H&K MP5K/SP89/SP5K 9mm End Cap

    H&K MP5K/SP89/SP5K 9mm End Cap

    H&K Heckler & Koch

    $99.95
    HK Factory German MP5K, SP-89, & SP5K End Cap With Sling Swivel Each pistol end cap is OEM HK German MP5K and MP5K-N and has the HK German factory buffer.  Compatible With: MP5K SP89 SP5K MP5K-N MP5K-PDW MP5K Clone Or Other Custom Builds
    HKP-00394
    $99.95
    Qty in Cart: 0
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  • HKP HK MP5SD Barrel Port Brush Replacement Cartridge HKP HK MP5SD Barrel Port Brush Replacement Cartridge

    HKP HK MP5SD Barrel Port Brush Replacement Cartridge

    HKP HK Parts

    $38.75
    HKP MP5SD Replacement Cartridge for Barrel Port Brush Replacement cartridge for HK MP5SD barrel port brush. Our replacement cartridge is compatible with factory HK barrel brush assemblies. Compatible With: HK MP5SD  
    HKP-21294
    $38.75
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    $38.75
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  • H&K -4 Roller For Bolt Head 7.96mm - Under-sized H&K -4 Roller For Bolt Head 7.96mm - Under-sized

    H&K -4 Roller For Bolt Head 7.96mm - Under-sized

    H&K Heckler & Koch

    $27.99
    H&K -4 Roller For Bolt Head 7.96mm - Under-sized The proper roller size is essential for proper head spacing and bolt gap. New HK German not surplus or used goods. German-made -4 roller, each roller is priced per roller. Please Note: The price listed...
    HKP-00504
    $27.99
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  • H&K MP5 9mm Flash Hider - 3-Lug H&K MP5 9mm Flash Hider - 3-Lug

    H&K MP5 9mm Flash Hider - 3-Lug

    H&K Heckler & Koch

    $164.95
    H&K MP5 9mm Flash Hider - 3-Lug This part attaches to the end of any factory specification 9mm 3-lugged barrel. This flash hider does not require the use of threads as it attaches to the 3-lug tip, this is also a great addition for any of the 3-lug...
    HKP-00082
    $164.95
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    $164.95
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  • H&K SP5K 9mm Drop In Paddle Mag Release Upgrade Kit H&K SP5K 9mm Drop In Paddle Mag Release Upgrade Kit

    H&K SP5K 9mm Drop In Paddle Mag Release Upgrade Kit

    H&K Heckler & Koch

    $129.95
    German HK SP5K Anti-Rattle Roller Tipped Paddle Magazine Release Kit No modifications, no refinishing...complete drop-in kit included New HK German & USA made paddle mag release kit for the HK SP5K. This kit will allow any end-user to quickly...
    HKP-18082
    $129.95
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  • HKP HK MP5K QD End Cap with Buffer - Black HKP HK MP5K QD End Cap with Buffer - Black

    HKP HK MP5K QD End Cap with Buffer - Black

    HKP HK Parts

    $44.95
    Quick Detach MP5K, SP-89 Steel End Cap With Replaceable Rubber Buffer Compatible With: MP5K SP89 Clone or other custom builds
    HKP-20117
    $44.95
    Qty in Cart: 0
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    $44.95
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  • H&K MP5K/SP5K 9mm SEF Trigger Housing - Universal H&K MP5K/SP5K 9mm SEF Trigger Housing - Universal

    H&K MP5K/SP5K 9mm SEF Trigger Housing - Universal

    H&K Heckler & Koch

    $199.95
    H&K MP5K/SP5K 9mm SEF Trigger Housing - Universal A one size fits all approach for the MP5K and SP5K style semi-auto shelf. This is the best option for MP5K and SP5K receivers. Easily interchange the lower trigger group assembly without swapping...
    HKP-20557
    $199.95
    Qty in Cart: 0
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  • H&K Navy Extended Selector Lever - 3 Position H&K Navy Extended Selector Lever - 3 Position

    H&K Navy Extended Selector Lever - 3 Position

    H&K Heckler & Koch

    $199.95
    HK Ambidextrous Left Side EXTENDED (ESSL) 3 Position Navy Selector Lever  New German HK Extended lever for all 3 position navy ambidextrous trigger packs or trigger groups. It will not fit SEF-style trigger packs.   
    HKP-00125
    $199.95
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  • B&T HK MP5K/SP5K/SP89 Barrel - Threaded 1/2x28 - 3-Lug B&T HK MP5K/SP5K/SP89 Barrel - Threaded 1/2x28 - 3-Lug

    B&T HK MP5K/SP5K/SP89 Barrel - Threaded 1/2x28 - 3-Lug

    B&T Brugger & Thomet

    $349.95
    B&T HK MP5K/SP5K/SP89 Barrel - Threaded 1/2x28 - 3-Lug New from B&T Switzerland, cold hammer-forged (CHF), properly fluted & nitrided MP5K/SP5K barrels manufactured exclusively for the HK SP5K. New Swiss manufactured from hand-picked Swiss...
    HKP-17894
    $349.95
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    $349.95
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  • HKP SEF Short Axle Selector Lever For Metal Trigger Housings Only HKP SEF Short Axle Selector Lever For Metal Trigger Housings Only

    HKP SEF Short Axle Selector Lever For Metal Trigger Housings Only

    HKP HK Parts

    $19.95
    HKP SEF Short Axle Selector Lever For Metal Trigger Housings Only HK German steel SEF selector lever.  Please note that the polymer (plastic) style SEF housing uses the longer axle SEF selector lever not this product offering. Brand new factory...
    HKP-17910
    $19.95
    Qty in Cart: 0
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    $19.95
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  • On Sale
    Franklin Armory HK MP5K - BFSIII HK-C1 Binary SEF Navy Style Trigger Group

    Franklin Armory HK MP5K - BFSIII HK-C1 Binary SEF Navy Style Trigger Group

    FA Franklin Armory

    Now: $703.95
    Was: $879.95
    Franklin Armory HK MP5K - BFSIII HK-C1 Binary SEF Navy Style Trigger Group In position 3 it will fire 1 round on pull and 1 round on release. With a 4.5 lb trigger pull, making this the fastest semi-automatic trigger on the market. The BFSIII™ is...
    HKP-20928-M
    Now: $703.95
    Was: $879.95
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    Now: $703.95
    Was: $879.95
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  • Out Of Stock
    H&K SEF Long Axle Selector Lever For Polymer Trigger Housings - Extended H&K SEF Long Axle Selector Lever For Polymer Trigger Housings - Extended

    H&K SEF Long Axle Selector Lever For Polymer Trigger Housings - Extended

    H&K Heckler & Koch

    $0.00
    HK German SEF Extended Axle Selector Lever For Polymer Housings - Extended The HK Extended SEF Long Axle Selector Lever is designed for use with polymer SEF-type grips or trigger housings. This extended lever provides enhanced control and ease of use,...
    HKP-19027
    $0.00
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    $0.00
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  • Magpul Rail Light Mount M-LOK Magpul Rail Light Mount M-LOK

    Magpul Rail Light Mount M-LOK

    Magpul

    $19.95
    Magpul Rail Light Mount M-LOK Designed for use with all M-LOK mounting surfaces, the M-LOK polymer cantilever rail/light mount allows the attachment of various MIL-STD-1913 Picatinny spec rail-mounted accessories such as lights and optics, and directly...
    HKP-20689
    $19.95
    Qty in Cart: 0
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    $19.95
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  • H&K MP5, MP5K, SP5, 94 & SP89 Cocking Handle H&K MP5, MP5K, SP5, 94 & SP89 Cocking Handle

    H&K MP5, MP5K, SP5, 94 & SP89 Cocking Handle

    H&K Heckler & Koch

    $44.95
    HK MP5, 94 & MP5K, SP89, SP5K Cocking Handle - German New factory HK German latest manufactured and updated style. This part is the current model that HK is equipping all new HK MP5/MP5K variants with. Made to last and the nicest of all the...
    HKP-00095
    $44.95
    Qty in Cart: 0
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    $44.95
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  • H&K Bungee Single Point Sling - 1250mm Long H&K Bungee Single Point Sling - 1250mm Long

    H&K Bungee Single Point Sling - 1250mm Long

    H&K Heckler & Koch

    $109.95
    H&K Bungee Single Point Sling - 1250mm Long New factory HK German manufactured single point elastic "push/pull" bungee style sling. Includes the factory sling hook and is fully adjustable for the average sized mag to use. Will fit any HK application...
    HKP-17604
    $109.95
    Qty in Cart: 0
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    $109.95
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  • HKP 9mm A2 Style Flash Hider - 3-Lug HKP 9mm A2 Style Flash Hider - 3-Lug

    HKP 9mm A2 Style Flash Hider - 3-Lug

    HKP HK Parts

    $99.95
    HKP 9mm A2 Style Flash Hider - 3-Lug Easily attaches to the end of any factory specification 9mm 3 lugged barrel. This flash hider does not require the of threads as it attached to the 3 lug tip. Also a great addition for any of 3 lug barrels found on in...
    HKP-19520
    $99.95
    Qty in Cart: 0
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    $99.95
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  • HK Parts MP5K Folding Stock Buffer HK Parts MP5K Folding Stock Buffer

    HK Parts MP5K Folding Stock Buffer

    HKP HK Parts

    $9.95
    HK Parts MP5K Folding Stock Buffer This item used to replace the factory HK buffer on MP5K folding stocks and end cap. This is only usable on the factory OEM stock and end cap. This buffer can also be used as a replacement buffer for all of MP5/MP5K...
    HKP-20833
    $9.95
    Qty in Cart: 0
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    $9.95
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  • Out Of Stock
    H&K HK MP5, HK 416, GSG5 .22LR Sling - Black H&K HK MP5, HK 416, GSG5 .22LR Sling - Black

    H&K HK MP5, HK 416, GSG5 .22LR Sling - Black

    H&K Heckler & Koch

    $0.00
    HK 416, HK MP5 & GSG5 .22LR Sling  This is a factory HK-manufactured sling perfect for HK weapons systems, including .22LR models. Each unit comes with 2 HK German sling hooks or ambi use, as well as a quick detach buckle. This part is fully...
    HKP-00893
    $0.00
    Qty in Cart: 0
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    $0.00
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  • HKP Single Point Leather & Cotton Sling HKP Single Point Leather & Cotton Sling

    HKP Single Point Leather & Cotton Sling

    HKP HK Parts

    $59.95
    Single Point Leather & Cotton Sling  Our leather sling utilizes two HK style sling hooks to attach to a single mounting point. Designed to replicate the original, out of production, German HK offering. Each sling is handcrafted in the US by a...
    HKP-21321-M
    $59.95
    Qty in Cart: 0
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    $59.95
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  • JMAC Universal HRD M-LOK Handstop JMAC Universal HRD M-LOK Handstop

    JMAC Universal HRD M-LOK Handstop

    JMAC Customs

    $49.95
    JMAC HRD M-LOK Handstop (H)and(R)etention(D)evice Compact, lightweight, & reversible. Features: M-LOK Compatible Fits in and across M-LOK Slots Includes mounting hardware 7075 T6 Aluminum Hard Coat Anodized The quarter-turn T-slot nuts have...
    HKP-21235
    $49.95
    Qty in Cart: 0
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    $49.95
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  • H&K 15 Round MP5/SP5/MP5K/SP5K 9mm Curved Magazine - Cerakote H&K 15 Round MP5/SP5/MP5K/SP5K 9mm Curved Magazine - Cerakote

    H&K 15 Round MP5/SP5/MP5K/SP5K 9mm Curved Magazine - Cerakote

    H&K Heckler & Koch

    $99.95
    HK German MP5, MP5K, SP5, SP5K - 15 Round Magazine - Cerakote Brand new factory fresh German HK 15 round curved magazine. Perfect for those in need of a lower capacity magazine for a more comfortable prone position shooting.  Compatible With:...
    HKP-21383-M
    $99.95
    Qty in Cart: 0
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    $99.95
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  • Out Of Stock
    H&K Standard 4 Position Burst Left Side Selector Lever

    H&K Standard 4 Position Burst Left Side Selector Lever

    H&K Heckler & Koch

    $399.95
    H&K Standard 4 Position Burst Left Side Selector Lever Compatible with any of the 0, 1, 3, F or 0, 1, 2, F trigger packs. Brand new HK German part. No longer available so get them while you can. 
    HKP-00123
    $399.95
    Qty in Cart: 0
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    $399.95
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  • Magpul HK SP5K SL Grip Module Magpul HK SP5K SL Grip Module

    Magpul HK SP5K SL Grip Module

    Magpul

    $219.95 - $239.95
    Magpul HK SP5K SL Grip Module HK Parts brings a solution for those wanting to upgrade to the Magpul SL grip. This is a perfect option for those wanting improved ergonomics and a modern aesthetic. The pictograms are hand-painted to match the factory...
    HKP-20945-M
    $219.95 - $239.95
    Qty in Cart: 0
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    $219.95 - $239.95
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  • UTG Vertical Grip With LED Light & Quick Detach Mount UTG Vertical Grip With LED Light & Quick Detach Mount

    UTG Vertical Grip With LED Light & Quick Detach Mount

    UTG

    $89.95
    UTG Vertical Grip With LED Light & Quick Detach Mount Features: UTG combat aluminum foregrip with integral LED flashlight Cree Q5 LED diodes Integrated reflector and light bulb to provide instant spot focus for clear object...
    HKP-13184
    $89.95
    Qty in Cart: 0
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    $89.95
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  • Blitzkrieg PTR Chevron Front Sight Gen 2 - Orange Blitzkrieg PTR Chevron Front Sight Gen 2 - Orange

    Blitzkrieg PTR Chevron Front Sight Gen 2 - Orange

    Blitzkrieg Components

    $56.99
    Blitzkrieg PTR Chevron Front Sight Gen 2 - Orange The Blitzkrieg Gen 2 HK-style front sight provides a bold, fast sight picture with a bright orange chevron for quick target acquisition. The sight face is moved forward for enhanced...
    HKP-20453
    $56.99
    Qty in Cart: 0
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    $56.99
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  • HKP Single Point Quick Detach Sling - OD Green HKP Single Point Quick Detach Sling - OD Green

    HKP Single Point Quick Detach Sling - OD Green

    NcSTAR

    $29.95
    HK Single Point Sling in Green - Quick Detach Specifications: Composition: Heavy duty 1.5" wide adjustable nylon webbing and elastic bungee construction. Style: Bungee-type design for complete comfort and stability Sling loop is adjustable for length...
    HKP-19708
    $29.95
    Qty in Cart: 0
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    $29.95
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  • Strike Industries 9MM Dummy Rounds - Set Of 5 Strike Industries 9MM Dummy Rounds - Set Of 5

    Strike Industries 9MM Dummy Rounds - Set Of 5

    Strike Industries

    $8.95
    SI 9MM Dummy Rounds - Set Of 5 Strike Industries dummy rounds will let you safely test the feeding, extraction, and magazine function of your firearms without the worry of accidental discharge. They also let you dry fire without risking damage to the...
    HKP-17383
    $8.95
    Qty in Cart: 0
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    $8.95
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  • Strike Industries M-LOK Bikini Hand Stop Strike Industries M-LOK Bikini Hand Stop

    Strike Industries M-LOK Bikini Hand Stop

    Strike Industries

    $13.95
    Bikini Hand Stop (2-pack) Strike Industries The Strike Industries Bikini Hand Stop (BHS) gives the shooter increased ergonomics and control of the weapon. The hand stop is made from durable and lightweight polymer compatible with M-LOK rails. The BHS is...
    HKP-20057
    $13.95
    Qty in Cart: 0
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    $13.95
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  • H&K Sling Hardware H&K Sling Hardware

    H&K Sling Hardware

    H&K Heckler & Koch

    $4.95
    HK German Sling Hardware New Old Stock Slider and sling tension adjuster for HK style slings and other sling applications. Steel manufacture. 
    HKP-19367
    $4.95
    Qty in Cart: 0
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    $4.95
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  • HKP MP5K Folding Stock Adapter - Black HKP MP5K Folding Stock Adapter - Black

    HKP MP5K Folding Stock Adapter - Black

    HKP HK Parts

    $139.95
    HK Parts Adapter for Side Folding Stock – HK MP5K, SP89, SP5K & Clone  The HK Parts folding stock adapter is the best option to attach onto the UMP style stock or the B&T  folding stock. Will also work on any other stocks that...
    HKP-20799
    $139.95
    Qty in Cart: 0
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    $139.95
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  • MKE AP5-M Sling Complete MKE AP5-M Sling Complete

    MKE AP5-M Sling Complete

    MKE

    $34.99
    MKE AP5-M Sling Complete Features: Factory MP5 Sling Fits AP5-M and AP5-P Pistols 2 Point Sling   
    HKP-21186
    $34.99
    Qty in Cart: 0
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    $34.99
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  • Ambi Housing- Franklin Armory Binary Selector Set - Skeletonized - HKP Ambi Housing- Franklin Armory Binary Selector Set - Skeletonized - HKP

    Ambi Housing- Franklin Armory Binary Selector Set - Skeletonized - HKP

    HKP HK Parts

    $79.95
    HKP/H&K MP5/K 9mm Selector Lever Set For Franklin Armory BFSIII HK Binary Trigger Pack - Aluminum Skeletonized Our new skeletonized aluminum selector lever set was modeled after the HK ambi style selector lever and modified for a more cleaner...
    HKP-20470-M
    $79.95
    Qty in Cart: 0
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    $79.95
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  • On Sale
    GSG GSG-5 Flashlight with Tri-Rail - Black GSG GSG-5 Flashlight with Tri-Rail - Black

    GSG GSG-5 Flashlight with Tri-Rail - Black

    GSG German Sports Guns

    Now: $9.95
    Was: $27.95
    GSG GSG-5 Flashlight with Tri-Rail - Black Universal flashlight with three picatinny rails for additional accessories. Batteries are NOT included.  Ships unassembled.  Simply open the mount and secure the flashlight in the direction and offset...
    HKP-00790
    Now: $9.95
    Was: $27.95
    Qty in Cart: 0
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    Now: $9.95
    Was: $27.95
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  • H&K HK 30 Round MP5/SP5 & MP5K/SP5K 9mm Magazine - RAL 8K H&K HK 30 Round MP5/SP5 & MP5K/SP5K 9mm Magazine - RAL 8K

    H&K HK 30 Round MP5/SP5 & MP5K/SP5K 9mm Magazine - RAL 8K

    H&K Heckler & Koch

    $99.95
    New German - H&K MP5, SP5, SP5K, MP5K 9mm - 30 Round Curved Magazine  - RAL 8K Heckler & Koch factory fresh magazine from this current year's production. 9mm 30 Round curved all-steel magazine stamped "Made In Germany". This special offering...
    HKP-19975
    $99.95
    Qty in Cart: 0
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    $99.95
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