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Janmichael K. asked 4 years ago:
Product
Janmichael, this is a Multi - Caliber Upper/Lower. This is marked Multi-Cal directly on the Receiver Pictures here : https://www.aeroprecisionusa.com/m4e1-threaded-assembled-receiver-set-special-edition-betsy-ross-anodized-black
James G.
4 years ago
Yes, multiple calibers is correct.
Jason L.
4 years ago
