M14 spring guide rod fluted?

The fluted ones are marginally lighter, but the real advantage is a smaller surface area for friction with the spring. I guess if sand or grit gets in there the grooves would allow it to be pushed aside easier too.

I'm no expert but the only other upgrade that I would do out-of-the-box is a USGI rear sight.

That having been said, the flat op-rod spring guides are perfectly functional and a lot of people seem to be having better luck with Norc rear sights lately. I'd shoot it a bit and see how it does before breaking out the credit card.
 
Is it also a good idea to upgrade the spring too? I see some people talking about a chrome silicon spring or something.
 
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