Received the uppers I ordered quickly. They were well packaged and clean. MAS defense was great when I inquired about shipping these with no muzzle device (they are being replaced anyway). While they couldn't ship without them, they did offer to only hand tighten them, which they did. 4 stars because the rails are not the most "solid" set up I've seen, but for the price and intended use they should work just fine.
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