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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Picatinny 9" Stock with 1913 Folding Mech
JMAC Customs
$309.90JMAC Universal Picatinny 9" Stock with 1913 Folding Mech Feautures: NEW Integrated Rubber Buttpad!! 2x Integrated QD Sling Socket 9" Length 0.275" Cheek Rise Drilled and tapped for optional cheek risers Compatible with JMAC & SIG folding...HKP-21242-BL$309.90 -
MI Side Folder with Lightweight Stock
MI Midwest Industries
$180.95MI Side Folder with Light Weight Stock Features: Made in the USA Heavy-duty side-folding mechanism constructed from 4140 steel Full-length locking lug for maximum strength Solid positive lock up in both positions Steel clamp with large surface...HKP-20065$180.95 -
HK MP5 to MP5K Housing Conversion Service
USA
$149.95MP5 to MP5K Housing Conversion Service At HK Parts we are now offering our own HK trigger housing conversion service. No one does a better job with quicker turn around then we do. This conversion is the best option for those that want to install hard to...HKP-20473$149.95 -
$14.95 -
HK MP5, HK90 Series Extended Selector Lever - Left Side ESSL - Ambi Burst Trigger packs
H&K Heckler & Koch
$94.95Heckler and Koch Extended Selector Lever - Burst 3 Position Brand new, genuine German HK extended ambi left side safety selector with axis for all ambidextrous burst lowers. This is a LEFT side EXTENDED Safety Selector Lever ESSL for ambidextrous...HKP-16973$94.95 -
HK MP5, VP9 Reflex Sight HE-507K - Green
Holosun
$354.95Holosun HK VP9 SCS-MOS Reflex Sight The HE507K-GR X2 is an open reflex optical sight designed for subcompact pistol applications. Lock Mode, when activated, locks the buttons preventing inadvertent setting changes. Additional features include...HKP-21677$354.95 -
HK MP5, MP5K, SP89, HK94 Trigger Pack - SEF Semi - 9mm - Enhanced 5 to 6 lb Trigger Pull
HKP HK Parts
$439.95HKP 9mm SEF Semi Trigger Pack - ENHANCED 5-6 LBS Trigger Pull These trigger packs start as a F/A pack and gets professionally converted to the BATFE specs so you can rest assured the trigger pack is done correctly and to spec. These refinished trigger...HKP-20312$439.95 -
Out Of Stock
B&T Telescopic Stock End Cap
B&T Brugger & Thomet
$8.95B&T Telescopic Stock End Cap B&T replacement end cap for telescopic stocks. Limits the extension of the stock to keep it from sliding out of the guides.HKP-21721$8.95 -
HK MP5K Grip Frame Housing - 2 Positions S,F Pictogram - Clipped and Pinned - 9mm
PTR
$159.95PTR HK MP5K 9mm 2 Positions (S,F Pictogram) Grip Frame Housing - Clipped and Pinned This HK aftermarket trigger housing will accept all SEF style trigger packs. This is made by PTR 91 to exact HK specs. This housing comes clipped and ready for a...HKP-16443$159.95 -
HK XX Marked 9mm Strutted Hammer
H&K Heckler & Koch
$159.95HK XX Marked 9mm Strutted Hammer Compatible With: MP5, 94, SP5 MP5K, SP89, SP5K MP5 40, MP5 10 Clones or other custom buildsHKP-00148$159.95 -
On Sale
HK MP5, G3, HK93 Magazine Catch Push Button- Used
H&K Heckler & Koch
Now: $4.95Was: $8.95H&K MP5, G3, PTR, HK93 Push Button for Magazine Catch - Used Factory original HK push button replacement part. Limited quantity available. This is a used part, sold AS-IS, and is not eligible for return. Compatible...HKP-99316Now: $4.95Was: $8.95 -
UCS Universal Carbine Stock - M1913 rail
Magpul
$209.95Magpul UCS Universal Carbine Stock The Magpul UCS (Universal Carbine Stock) is designed to be the ideal lightweight supplement to the vast array of firearms utilizing a vertical M1913 rail on the rear of the receiver for stock fitment. To accommodate the...HKP-22171-M$209.95