MR556 Ejector is a bolt-system component associated with the HK MR556 family and identified by SKU 50233109. This page is an educational identification reference and does not provide installation or modification instructions.
MR556 Ejector specifications and reference details
- SKU: 50233109
- Component type: Ejector
- Referenced model family: HK MR556
- Category: Upper Receiver Parts
The product name appears in the official HK Upper Receiver Parts catalog.
MR556 compatibility and related bolt components
Compatibility depends on the exact bolt assembly, model variation, production configuration, and verified part number. Do not assume that visually similar ejectors are interchangeable.
Related pages include the MR556 Firing Pin and MR556 Bolthead Carrier Incomplete. Browse Upper Receiver Parts or Rifle Parts.
Identification considerations
Check SKU 50233109, the complete model, bolt configuration, component dimensions, and manufacturer documentation. Wear or damage should be evaluated professionally.
Safety and professional service
The ejector is part of the firearm’s cycling and extraction system. Keep the firearm unloaded and ammunition separated. Inspection, replacement, retention, and function checks should be performed by a qualified gunsmith using manufacturer procedures.
Common MR556 Ejector questions
Is this identified for the MR762?
No. This listing specifically references the MR556 family.
Can appearance confirm compatibility?
No. Verify the SKU, bolt assembly, and model documentation.






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