Yeah, the biggest thing that i guess concerns me is how much more accuracy you will get out of an 18" barrel. I like the idea of the dissipator simply because it seems like that would be the least amount of recoil possible with a low mass BCG and adjustable gas block.
That's what i figure most people would say, just curious. Have any of you run a 16" dissipator. I know that some of the older ones had some issues, but seems like I heard the newer ones were more reliable.