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 to hold the stock to the receiver. Compatible...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 for easy movement with minimal play. It has an...HKP-02194$9.89 -
HK MP5, MP5K, G3, HK93 Mag Release - Paddle Style - Extended - EMR
HKP HK Parts
$44.95HKP Paddle Style Extended Mag Release - EMR A great addition to any paddle style mag release, such as those found on an HK. The extended mag release is machined from a solid billet of aircraft grade aluminum and hard anodized aluminum for a lightweight...HKP-17079$44.95 -
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 pin. New HK German factory manufactured. Ready to weld...HKP-00349$13.95 -
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 semi-auto. This weldable block or shelf is essential for...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 to the top of your HK receiver. Compatible With: HK...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 receiver to allow the use of the clipped & pinned...HKP-01521$19.95 -
HK MP5, SP5K, HK94, SP89 Magazine Catch - 9mm - Latest Style
H&K Heckler & Koch
$64.95H&K 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. Constructed from a single piece of steel unlike the...HKP-00911$64.95 -
Out Of Stock
HK MP5, MP5K, HK94 Magazine Release Set
HKP HK Parts / Heckler & Koch
$94.95HK MP5, MP5K, & 94 Mag Release Set, Complete - German or USA Complete magazine paddle mag release kit that includes everything you need for the the paddle mag release & standard mag release on your HK 9mm rifle or pistol build. All parts are new...HKP-17569$94.95 -
HK MP5 Sling Clip for Magwell
HKP HK Parts
$9.95HKP MP5 Sling Clip for Magwell This is the factory correct sling clip that attaches to the left hand side of the magwell. Note: 3 rivets are required to attach - sold separatelyHKP-18313$9.95 -
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 platform made for mounting scopes and optics to HK builds...HKP-18241$59.95 -
Picatinny Rail for HK Receivers - 13 Slot
HKP HK Parts
$52.95HKP Picatinny Rail For HK Receivers - 13 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 platform made for mounting scopes and optics to HK builds...HKP-18238$52.95