MR556 Bolthead Carrier Incomplete is an incomplete bolt-carrier-system component identified by SKU 236266. The word “incomplete” is a critical part of the product identity and indicates that this is not represented as a complete ready-to-use assembly.
MR556 Bolthead Carrier Incomplete specifications
- SKU: 236266
- Component type: Incomplete bolthead carrier component
- Referenced model family: HK MR556
- Assembly status: Incomplete, as stated in the catalog name
- Category: Upper Receiver Parts
The product name appears in the official HK Upper Receiver Parts catalog.
MR556 compatibility and related bolt-system parts
Compatibility and completeness must be evaluated against the exact MR556 configuration, bolt assembly, production variation, and manufacturer documentation. Do not infer included components from photographs alone.
Related references include the MR556 Firing Pin and MR556 Ejector. Browse Upper Receiver Parts or Rifle Parts.
Identification considerations
Confirm SKU 236266, all included and missing components, model designation, condition, and manufacturer diagrams. An incomplete carrier must not be treated as a complete assembly.
Safety and professional service
Bolt and carrier components affect locking, firing, pressure containment, and cycling. Keep the firearm unloaded and ammunition separated. Only a qualified gunsmith should assess completeness, compatibility, condition, assembly, headspace-related concerns, and safe function.
Common MR556 Bolthead Carrier questions
Is this a complete carrier assembly?
No. The catalog name expressly identifies it as incomplete.
Can it be used without professional evaluation?
No. A qualified professional must confirm completeness and safe compatibility.
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