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Will this work with a mil-spec receiver and if yes, what magwell adaptor is recommended? — 1 Answer
by Mike, from TN, United States Asked on August 1, 2022
The FM Products FM-45 AR .45 Upper Receiver w/ Micro Brake should work with a Mil-Spec lower even though it is recommend to use a pistol lower that accepts Glock .45 ACP magazines. Foxtrot Mike states that the Stern Magwell adapters are not compatible with their uppers and from what information I could find they are the only ones that make a .45 ACP mag well adapter. I recommend contacting Foxtrot Mike to see what .45 ACP mag well adapter they recommend.