The factory 10" is perfect right out of the box, just plug and play. It does only take 5 minutes to make the change, after spending 90 minutes cleaning off the gorilla snot. It cycled my normal handloads flawlessly without any really noticeable differences from the 16" barrel with the exception of the tuning fork "ting" from the flash hider after every shot. It was well worth the price and wait to get it done. I doubt that the 16" barrel will see the rifle again. Going with the factory barrel also eliminated the need to play the "gas screw shuffle". Now I just need mount for the suppressor.