MP5K / SP5K Small Parts

Heckler & Koch HK MP5, MP5K - Extractor Spring - 9mm This extractor spring will fit all of the 9mm HK variants including clones. This part is German HK factory manufactured and made to the tightest of specifications and tolerances and will provide a...

H&K Ejector Lever Spring The new HK German factory ejector lever spring fits all HK 90 series of rifles and pistols. This is a common repair and replacement part, and it is a recommended spare part for every HK enthusiast or shooter. SEF, Ambi, and...

FMP MP5, MP5K Extractor Spring New old stock HK contract FMP extractor spring will fit all of the 9mm HK variants including clones. This part was made using HK prints on HK contract tooling that the German HK factory manufactured for the Portuguese...

HK German 308/7.62 & 556/.223 Rifle Extractor Spring New factory HK German part. The extractor spring is the most frequently replaced part on HK firearms.  Compatible With:   HK91, G3, PTR HK33, HK53, HK93 HK21, HK11 (non-E spec)...

H&K HK Push Pin - Forearm with Lower - Small Push Pin All steel HK German small push pin for use on the lower grip housing. The small push pin is also the correct pin for holding the HK forearm in place. Compatible With: HK91, HK G3, PTR HK93, 33,...

H&K Heckler & Koch HK Spring - Roller Holder - Retainer - Action 3 Roller Retainer Spring   Second-generation roller holder. Each retainer fits all Action 3 9mm MP5 & MP5K bolt heads & MP5 40/10 bolt heads. The roller retainer spring...

HK Small push pin - US Made All steel small push pin for use on the lower grip housing for a push pin style of lower housing. Black nitride finish which adds extra durability to the pin plus corrosion and abrasion resistance. The small push pin is also...

HK Parts contracted with FMP to bring you this Rifle Extractor Spring New FMP contract! The extractor spring is the number one replaced item on HK firearms. Many HK gunsmiths recommend upgrading with the longer stronger silver spring. Upgrade your...

HKP 1st Gen Roller Retainer Plate To Spring Upgrade This action 3 roller retainer spring for all 1st Generation bolt heads replaces the oval-shaped roller retainer plate. HK made a wire spring as an upgrade for later production bolt heads to improve the...

RCM Rollers, + & - Sizes RCM US-made locking rollers are available in both plus and minus sizes, making them the ideal choice for adjusting bolt gaps. These rollers are the top-tier locking rollers on the market, delivering unbeatable performance and...

US Ejector Lever Axle This US ejector lever axle pin holds the ejector lever in place in the trigger pack. Made out to HK spec for the best US replacement part on the market. The best replacement for your worn out or broken axle. A must have replacement...

HK Heckler and Koch Set of Two (One Large and One Small) Push Pins -Used These are great replacements or spare parts to keep on hand.  Compatible With: MP5, SP5, SP89 HK91, G3 HK33, HK53, HK93 PTR and GSG-5 family of guns. Please...