Old Jalopy
.40 S&W
I'm in the process of making one of my uppers set up for featureless. I just got off the phone with one of my old neighbors who has almost the same upper (his is rifle length mine's a mid) and used the same thread protector I ordered. He let me know the thread protector will either be about 1/8" short without the crush washer and about 3/16" too long with the washer. So my question is if it's a pinch too short will it be an issue? The crown will stick out just that 1/8" but it doesn't seem like that should be a concern. Or add the washer and let it be a tad long?
Feedback would be appreciated.
Feedback would be appreciated.