You don't need the O-ring. People need to look at why this issue came about, those who were shooting and what they are shooting. Not one of my AR's needs an O-ring to extract and function properly.

Quote Originally Posted by Sparky5019 View Post
Ok...I've read this whole thread several times over the last few years and I'm starting to have a question.

I use CS 4 coil springs from Tactical Springs w/ black insert and Viton Crane O-Rings in my 14.5" middy. I am now retaining my brass and reloading it.

Would one do better to stay with this set up or upgrade to a CS 5 coil w/ black insert and no O-Ring to minimize rim damage (assuming no FTF/FTE)?

Thoughts?

Sparky