I am looking for a LW carbine upper. I would rather have a DD with a CHF barrel but others are ok. A 14.5” that is not pinned is really what I want but if yours is pinned I might still be interested in it depending on which muzzle device it is. I will also consider a 16” barrel. If the upper has a DD MK18 FSP rail on it you just made my day.
Thanks!!