I have been cutting ejector springs for several years in my AR's and for others. No problems. My oldest upper is on it's third barrel
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If you a lefty, performing this will really help you!
I do cut mine off very neatly and square with a Dremel Tool and a cut off wheel. Some do theirs with side cut pliers. Just be sure the end of the spring is not distorted and remains the same contour of the remainder of the the spring when you are finished.
Myself, I am courteous to other competitors when on the firing line. I don't bury the shooter to the right of me with my brass. In other words, I practice good range etiquette! Also, I always get my brass in the allowed time permitted for policing, most times even before, as they can all be found in a neat pile out at 1 o'clock. In prone, just about a foot away from the rifles ejection port.
Now when I get buried or repeatedly pelted by a competitor's AR brass, well since I am so courteous on the line, I kindly help them police their brass by throwing it back at them! Like here you go bud
. Sometime, hopefully in the near future they will get the message and cut their ejector spring.
Dave McGrath