This is “news”?
Uppers for a wide variety of calibers have existed for the same lowers in the AR family for decades https://t.co/riJCJTpYUf
— Mɐɹɹǝu Wʎǝɹs (@warrenmyers)
Jun 1, 2026
from Twitter https://twitter.com/warrenmyers
June 1, 2026 at 11:16AM
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