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M4 Barrel Nut WON'T COME OFF


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EDIT-Problem Solved


My no-name full length mag tube is the problem. This tube is slightly small diameter, allowing the barrel nut to move away from the detent and bind. If I squeeze the mag tube & barrel together, the nut lines up over the detent and comes right off. No problems at all with the factory magazine tube.


Thanks to those who responded, yall gave me the inspiration I needed to really look into this.


Kip, I need a Ti tube... and a handle, please.

Edited by BLACK
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Odd issue, never ran into it. Since the detent moves freely - check the geometry of the teeth make sure they are normal and comparable to a working one if possible. Make sure the detent is properly round as well. Only thing I can think of why it can't push the detent in when you attempt to unscrew it.


Diameter of teeth too small / large also?

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