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Why does this image look like a castle nut? Shouldn't there be a port for the gas tube? Unless it's slim and gas tube is free floating. — 1 Answer
by
Grunt3327,
from WI, United States Asked on December 21, 2022
Answered by
Hunter,
Gear Expert,
from OH, United States,
on January 05, 2023
The Aero Precision M4E1 / C.O.P. Barrel Nut is specifically designed for use with the Aero Precision M4E1 Enhanced Upper Receivers. It will not work with a standard upper receiver.
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