Quote Originally Posted by van7559 View Post
recoil?? really??
Shoot your AR with the butt resting on your nutz and then think about recoil. (Disclaimer: not that I have actually done that.)

On a seriously note to the OP I am not sure what heavy buffer your talking about?

I use the Spike's ST-T2 and mid length gas systems resulting in a nice soft cycle. I could see if running a carbine gas and a light buffer upgrading that buffer to a little heavier weight might make it feel a little better but between a standard and and the ST-T2 I am using is mere ounces of weight. I have read that for short barrel rifles under 14" it helps.

Don't over think it, I see no real reason to use a "Heavy buffer" on a 5.56 carbine with 14.5 or more barrel. Someone wiser (matter of opinion) than me will probably chime in