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This kit converts 5.7x28mm Mk57 upper receivers to .22 LR. Not compatible with 5.56/.223 uppers or Mk57 lower groups. Kit includes 5.7x28 to 22LR conversion and three 25rd magazines. Stainless steel construction. Magazine fits Mil-Spec AR15/Mk4 lowers. Simple installation with no tools required. Not compatible with Mk57 Lower Groups or 5.56/.223 uppers.
Specifications
- Manufacturer:
- CMMG
- Category:
- misc-parts
- MPN:
- 54BA67A
- Required Component:
- No
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