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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HK SP89, SP5K, MP5K - Forearm
$49.95HK SP89, SP5K, MP5K - Forearm Compatible With: HK MP5K HK SP89 HK SP5K MP5 Reverse Stretch Style Builds Custom MP5K/ SP89 builds Specifications: Made in the USA 922r Compliant Brand: HK Parts *Can be modified to install on MP5K-N builds with 3...HKP-17397$49.95 -
HKP MP5K/SP89/SP5K Recoil Rod Assembly - USA
DTAC Dakota Tactical
$34.95HKP MP5K, SP89, & SP5K Recoil Rod Assembly - USA The new US-made Dakota Tactical recoil rod assembly is completely micro-polished and built of the finest materials. This is a great item to have on hand as a spare part as this is a wear and...HKP-02169$34.95 -
HKP HK SP5/K 9mm Thread Protector - Threaded 1/2x28
HKP HK Parts
$19.95HKP/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 -
H&K -4 Roller For Bolt Head 7.96mm - Under-sized
H&K Heckler & Koch
$27.99H&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 -
H&K German 5.56/.223 & 7.62x51/.308)Hammer Spring - Used
H&K Heckler & Koch
$4.95HK German Rifle Hammer Spring For All .308 & .223 Semi & Full Auto Trigger Packs The rifle 308/556 hammer spring is a popular upgrade in 9mm builds experiencing light primer hits. This is the factory correct 25 lb. weight for positive detonation...HKP-18066$4.95 -
HKP HK MP5K to MP5 Stock Adapter
HKP HK Parts
$129.95HKP HK MP5K to MP5 Stock Adapter Our new MP5K to MP5 stock adapter is the perfect addition for those looking for a stock that provides a better line of sight and a better cheek rest position like the MP5 A2 fixed stock does. This stock adapter will allow...HKP-20988$129.95 -
H&K MP5SD 9mm Barrel Port Brush
H&K Heckler & Koch
$164.95HK Factory MP5SD Barrel Port Brush A much-needed barrel brush to keep the barrel clean on all factory HK MP5SD'S. Fits HK factory SD barrels or in-spec clone barrels such as RCM US-made barrels. Compatible With: MP5SD models Grab a...HKP-00137$164.95 -
MI HK MP5K, HK SP89 Top Rail - Black
MI Midwest Industries
$129.95MI HK MP5K, HK SP89 Top Rail - Black Midwest Industries picatinny and M-lok top rail for MP5, HK94 style weapons and clones. An amazing profile option for your MP5 style weapon. Offers a combination of strength, adaptability and extreme lightweight...HKP-19113$129.95 -
H&K MP5K/SP89/SP5K 9mm Forearm
H&K Heckler & Koch
$85.99HK SP5K Forearm - German Made from the best materials and processes available. Can be modified to install on MP5K-N builds with 3 lug barrels. Compatible With: MP5K, SP89 & SP5K Custom builds & projects, MP5K, SP89 buildsHKP-18063$85.99 -
Elite Tactical Systems 10 Round MP5 9mm Magazine-Translucent
Elite Tactical Systems
$39.95HK MP5 9mm 10 Round Translucent Magazine Features: Works with ETSCAM-RIFLE speed loader Extremely reliable feeding - Even with hollow points Far lighter than steel magazines Limited 10 round capacity Lifetime Warranty Advanced Polymer...HKP-18740$39.95 -
HKP HK 9mm Enhanced Thread Protector - Threaded 1/2x28 RH
HKP HK Parts
$19.95HKP HK 9mm Enhanced Thread Protector - Threaded 1/2x28 RH This enhanced thread protector is crafted from stainless steel and designed for 1/2x28 threaded barrels. Its unique design not only fits over and protects the crown of your barrel but...HKP-17977$19.95 -
HKP Enhanced Ambi Selector Set - Contoured SEF
HKP HK Parts
$74.95Ambidextrous Selector Lever Set For Contoured SEF Polymer Grip Frames Features: Billet machined enhanced left & right side selector lever set Latest HK style titanium detent, enhanced spring for positive movement between...HKP-18257$74.95 -
HKP MP5K/SP89 9mm Handguard - M-LOK
HKP HK Parts
$89.95HKP MP5K/SP89 9mm Handguard - M-LOK The M-LOK tactical handguard installs on your firearm with minimal effort, no fitting required. Designed from the ground up by roller-lock enthusiasts. Features: Made in the USA (922r compliant) Accepts ALL...HKP-17264$89.95 -
MI HK MP5K Tri-Rail Handguard
MI Midwest Industries
$149.95MI 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 -
Magpul Rail Light Mount M-LOK
Magpul
$19.95Magpul 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 -
Zenith - No Evil MP5 Magazine
Zenith
$43.95Zenith - No Evil MP5 Magazine The infamous three wise monkeys laser-etched into a Zenith magazine. Hear no evil, see no evil, speak no evil. Limited run so get them while you can! Application of oil is recommended depending on climate...HKP-20842$43.95 -
H&K Sling Hardware
H&K Heckler & Koch
$4.95HK 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 -
B&T Ambidextrous Sling Pin- Large
B&T Brugger & Thomet
$57.95B&T Stock Ambidextrous Sling Pin That Replaces The Push Pin For Stock Each ambi sling pin will allow the use of a sling mounting location for either a left or right hand shooter for replacing the rear stock push pin with this ambi sling pin. Each pin...HKP-16887$57.95 -
B&T HK MP5K/SP5K/SP89 Barrel - Threaded 1/2x28 - 3-Lug
B&T Brugger & Thomet
$349.95B&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 -
Franklin Armory / HKP HK MP5K Binary Trigger Group – 2 Round Engraved Binary Housing
FA Franklin Armory / HKP
$1,449.95 - $1,499.95Franklin 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 -
H&K MP5 9mm Flash Hider - 3-Lug
H&K Heckler & Koch
$164.95H&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 -
H&K 15 Round MP5/SP5/MP5K/SP5K 9mm Curved Magazine - Cerakote
H&K Heckler & Koch
$99.95HK 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 -
HKP HK MP5SD Barrel Port Brush Replacement Cartridge
HKP HK Parts
$38.75HKP 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 MP5SDHKP-21294$38.75 -
HKP MP5 9mm Barrel Extension
HKP HK Parts
$49.95HKP 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 -
Strike Industries 9MM Dummy Rounds - Set Of 5
Strike Industries
$8.95SI 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 -
H&K MP5 9mm Magazine Locking Plate - Red
HKP HK Parts
$7.95HK MP5, MP5K 9mm Magazine Locking Plate - HK Red Teflon infused glass filled polymer red colored locking plate that will work with all HK MP5, MP5K 9mm curved magazines. A drop in item that allows you to swap the locking plate to a red unit. A great...HKP-18303$7.95 -
HKP HK MP5/K 9mm Knurled Micro Comp - Threaded 1/2x28 RH
HKP HK Parts
$26.95HKP 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 -
H&K MP5K/SP89/SP5K 9mm End Cap
H&K Heckler & Koch
$99.95HK 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 BuildsHKP-00394$99.95 -
H&K SP5K 9mm Drop In Paddle Mag Release Upgrade Kit
H&K Heckler & Koch
$129.95German 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 -
H&K MP5K/SP5K 9mm SEF Trigger Housing - Universal
H&K Heckler & Koch
$199.95H&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 -
On Sale
Franklin Armory HK MP5K - BFSIII HK-C1 Binary SEF Navy Style Trigger Group
FA Franklin Armory
Now: $703.95Was: $879.95Franklin 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-MNow: $703.95Was: $879.95 -
HKP SEF Short Axle Selector Lever For Metal Trigger Housings Only
HKP HK Parts
$19.95HKP 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 -
MI HK MP5K M-LOK Suppressor Handguard
MI Midwest Industries
MSRP: $179.95$169.95MI HK MP5K M-LOK Suppressor Handguard The Midwest Industries M-LOK suppressor handguard is designed to fit over your suppressor for extra protection and extending mounting options. Made in the USA from 6061 aluminum for a lifetime of service...HKP-21563MSRP: $179.95$169.95 -
HKP MP5 & MP5K 9mm Magazine Follower & Locking Plate Set
HKP HK Parts
$8.95HKP MP5 & MP5K 9mm Magazine Follower & Locking Plate Set A drop in item that allows you to swap your follower & locking plate to green or red. Best for a quick empty mag identifier. A great training or range aid at a great price. Made...HKP-21573-M$8.95 -
Out Of Stock
H&K Navy Extended Selector Lever - 3 Position
H&K Heckler & Koch
$199.95HK 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 -
HKP MP5 40/10 30 Round Magazine Spring
HKP HK Parts
$4.95HKP MP5 40/10 30 Round Magazine SpringHKP-16509$4.95 -
HKP HK MP5K QD End Cap with Buffer - Black
HKP HK Parts
$44.95Quick Detach MP5K, SP-89 Steel End Cap With Replaceable Rubber Buffer Compatible With: MP5K SP89 Clone or other custom buildsHKP-20117$44.95 -
JMAC Universal HRD M-LOK Handstop
JMAC Customs
$49.95JMAC 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 -
H&K MP5, MP5K, SP5, 94 & SP89 Cocking Handle
H&K Heckler & Koch
$44.95HK 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 -
HK Parts MP5K Folding Stock Buffer
HKP HK Parts
$9.95HK 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