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's HK Ejector Lever - 9mm - Gen 3 - Latest  3rd Generation  The German latest generation ejector has all of the upgrades and improvements made since the MP5 was introduced over 50 years ago. Fits all of the HK 9mm...

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...

New HK German HK 9mm Extractor - Latest Generation This is the latest and greatest HK MP5 (newest F style version) German extractor. Each unit works with all HK MP5, HK94, HK MP5K, HK SP89, HK SP5K, or other 9mm clones. A great part to have as a spare or...

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...