I'm not sure, I just pulled some images off of Google for visuals.
Originally Posted by TXDMERC73
I agree with all of y'all that are saying the buffer tube is stronger than I think, that's a good thing. It makes sense that if the buffer tube is steel then we'd have issues with the threads on an aluminum lower.
I'm no mechanical engineer, so someone correct me if this is wrong, but it seems that we can't just say "attaching steel to aluminum means we still have weak aluminum." The thickness of Milspec buffer tube walls are only 0.073"...reeeeally thin. Here is a Magpul drawing of a Milspec tube: https://docs.google.com/gview?embedd...er-tube-M4.pdf
Seems to me that the aluminum of the receiver, being so much thicker, would be much stronger.
But as we've established, maybe this is a solution looking for a problem...
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