To the original question..."BEST .308 BARREL LENGTHS: IS 16 INCHES TOO SHORT?"
My Answer....it depends.
I've had a 24" in an AR-10T, 25" on my USMC M40A1, and now have 16.5" on my POF Revolution DI.
Wildly different missions and usage for each.
What I've found is that my current AR platform...
I've had XDMs for almost 20 years. Both the 4.5 and 3.8. Best striker fire triggers I've ever laid hands on...especially over time. I'm deeply invested in holsters for both models as well. My beef has always been that they left us legacy owners hanging for red-dot equipped slide / barrel...