MP5K / SP5K Receivers / Uppers
Build a solid foundation for your firearm with MP5K receivers and SP5K uppers from HKP. Our HK Parts include precision-machined upper receivers to ensure accuracy and reliability. Complete your build with the best MP5K and SP5K receivers available.
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HK Stock Pin Bushing Weldment
HKP HK Parts
$3.95HK Stock Push Pin Bushing Weldment All-steel stock pin bushing weldment for welding in the rear of the flat. This bushing welds into the folded flat and guides the large push pin through the receiver...HKP-17573$3.95 -
HK90 Series Mag Paddle Bushing with Pin for Semi Builds
DTAC Dakota Tactical
$9.89DTAC Mag Paddle Bushing With Pin For Semi-Builds This part is made 100% in the US from 17-4 stainless steel. Latest production with patent pending anti-binding enhancement upgrade. Accurate tolerance...HKP-02194$9.89 -
HK MP5, MP5K, HK33, HK53, HK93, HK91, G3 Cocking Tube Hanger Clip
H&K Heckler & Koch
$13.95Heckler and Koch Cocking Tube Hanger Clip The HK cocking tube support hanger is the part that welds onto the end of the cocking tube that allows the forearm to install with the use of a small push...HKP-00349$13.95 -
HK MP5, MP5K, G3, HK93 Paddle Magazine Release - Extended - EMR
HKP HK Parts
$44.95HKP HK Parts Paddle Style Extended Magazine Release with EMR for HK MP5, HK G3, HK 33 and more A great addition to any paddle style mag release, such as those found on an HK. The extended mag release...HKP-17079$44.95 -
HK Semi Shelf Weldment - Metal Grip Housing
HKP HK Parts
$14.95HKP Semi Shelf Weldment Metal Grip Housing For Semi-Auto Trigger Packs This HK German specification metal trigger frame weldment is designed for converting SEF style housings from full auto to...HKP-16657$14.95 -
HK Picatinny Rail For HK Receivers - 17 Slot
HKP HK Parts
$69.95HKP Picatinny Rail For HK Receivers - 17 Slot Mil-Spec all steel Picatinny rail in the white. Relief cut for HK receivers and made for mounting scopes and optics to HK builds. This unit easily welds...HKP-01446$69.95 -
Receiver Shelf - Semi Auto - Billeted
$19.95Semi Auto Shelf for Receiver - Billeted HK Semi Auto Shelf milled from one solid billet to HK's factory specifications (no castings here). This is the needed receiver shelf that is welded to the...HKP-01521$19.95 -
Out Of Stock
HK MP5, SP5K, HK94, SP89 Magazine Catch - 9mm - Latest Style
H&K Heckler & Koch
$64.95Heckler and Kock 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...HKP-00911$64.95 -
HK MP5, HK94, SP5K Rear Sight Drum and Base - US
HKP HK Parts
$53.47HKP HK Parts Rear Sight Drum and Base for HK MP5, HK94, and HK SP5K Finally, an affordable factory correct rear sight that does not break the bank or lead to settling for inferior 3rd world produced...HKP-17512$53.47 -
HK Picatinny Rail For HK Receivers - 15 Slot
HKP HK Parts
$59.95HKP Picatinny Rail For HK Receivers - 15 Slot Mil-Spec all steel CNC'ed picatinny rail in the white, relief cut to fit flush and low profile on HK receivers. The most solid and consistent mounting...HKP-18241$59.95 -
Out Of Stock
HK MP5, MP5K, HK94 Magazine Release Set
HKP HK Parts / Heckler & Koch
$94.95HKP and Heckler and Koch Complete Magazine Release Set for your 9mm HK MP5, HK MP5K, and HK94 - German or American Complete magazine paddle mag release kit thatHKP-17569$94.95 -
HK Receiver Flat Bending Jig Set - Billet Aluminum
HKP HK Parts
$449.95Flat Bending Jig Set For All HK Style Flats - Billeted - Aluminum Aluminum billeted universal flat bending jig for all HK receiver flats including PTR .308 flats and the PTR/LSC flats. Each bending...HKP-19583$449.95