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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Arm Brace Hook
MI Midwest Industries
$97.95Midwest Industries Arm Brace Hook The Arm Brace Hook is designed for pistols that use a 1.2" diameter buffer tube. It provides a secure and stable point of contact while offering a built-in, ambidextrous QD sling interface. Specifications: Works with...HKP-22417$97.95 -
HK MP5K End Cap w/ Swivel Attachment
MKE
$69.95MKE HK MP5K End Cap with Swivel Attachment Durable factory-style end cap designed for MP5K platforms. Provides a secure sling mounting point for MP5K pistols. Compatible With: HK MP5K HK SP89 HK SP5K (may require some fitting, install lower pin before...HKP-22373$69.95 -
On Sale
HK MP5, AP5 SEF Trigger Pack Housing - Semi Auto
MKE
Now: $84.95Was: $124.95MKE HK MP5/AP5 SEF Trigger Pack Housing MKE trigger pack Housing for semi-auto SEF trigger housing. OEM part for Century AP5. Compatible With: HK MP5, MP5K with SEF housing Century Arms AP5, AP5-P with SEF housingHKP-22259Now: $84.95Was: $124.95 -
On Sale
HK 90 Series Locking Roller for Bolt Head - 7.96mm
MKE
Now: $22.95Was: $28.95MKE -4 Roller for Bolt Head 7.96mm - Under-sized The proper roller size is essential for proper head spacing and bolt gap. Made in Turkey by MKE on HK tooling. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the...HKP-22238Now: $22.95Was: $28.95 -
HK MP5K .40/10mm Folding Stock with Adapter
HKP HK Parts
$239.95HKP HK MP5K .40/10mm Folding Stock with Adapter Genuine H&K UMP folding stock completely assembled with the HK Parts stock adapter. CNC machined aircraft grade aluminum with QD sling attachment point. Available exclusively at HK Parts. Compatible...HKP-21893$239.95 -
HK MP5K Brace and Stock or Brace Adapter - 10mm / .40
HKP HK Parts
$239.95HKP HK MP5K .40/10mm Brace with Brace/Stock Adapter Designed to adapt UMP style and SB Tactical braces directly to the 40/10 K platform. Made in the USA and available exclusively at HK Parts Compatible With: HK MP5K .40/10mmHKP-21835$239.95 -
HK416, MR556 Facemount KeyMount (KeyMicro) - 360HD 1/2-28 FD
JMAC Customs
$124.95JMac Customs 360HD 1/2-28 FD Facemount KeyMount (KeyMicro) The JMac Customs 360HD is a high-performance muzzle device designed for superior durability, recoil mitigation, and compatibility with suppressors. Engineered with 360° ports for optimal...HKP-21825$124.95 -
HK MP5, MP5K 40/10 SD 120 Degree Locking Piece
RCM
$44.95RCM HK MP5 & MP5K 40/10 SD 120 Degree Locking Piece Compatible With: MP5/K 10 MP5/K 40HKP-21524$44.95 -
Picatinny - Dual Folding Adapter - Stock
Strike Industries
$199.95Strike Industries Dual Folding Stock This Strike Industries stock is ideal for MP5 or MP5K platforms featuring a 1913 Picatinny rail interface. Conveniently compatible with any platform featuring a Picatinny backplate. It offers quick, easy, and...HKP-21306$199.95 -
HK MP5K 40/10 SEF Navy Style Housing - Clipped & Pinned
H&K Heckler & Koch
$179.95H&K MP5K 40/10 SEF Navy Style Housing - Clipped & Pinned New factory German housing that has the cutout for the bolt hold open found on the MP5 40/10 firearms. Specifications: Made In Germany Clipped & Pinned SEF Pictogram Markings Navy...HKP-20108$179.95 -
HK MP5K 9mm 4 Position (0,1,3,F Pictogram) Trigger Housing - Push Pin
H&K Heckler & Koch
$487.95H&K MP5K 9mm 4 Position (0,1,3,F Pictogram) Trigger Housing - Push Pin This new HK German MP5K 4 position trigger housing features the 0,1,3,F pictogram and is designed as a factory push pin style housing. It is not clipped and pinned, suitable for...HKP-02184$487.95 -
HK MP5K/SP89 9mm 4 Position Burst Complete Trigger Group - Push Pin
H&K Heckler & Koch
$3,099.95H&K MP5K/SP89 9mm 4 Position Complete Trigger Group - Push Pin Each trigger group is brand new and factory fresh, direct from HK, specifically designed for push pin style factory MG's. They are compatible with MP5K, MP5K-N, and MP5K-PDW models. The...HKP-01498$3,099.95