I have the moe midlength. Don't regret but I will be trying to pick up a colt 6920 in od green in carbine length simply because i want more guns and it's od green and carbine length gets you more to accessorize from. The magpul new lines don't really accommodate for midlength. Used market is larger with carbine too. Quad rail isn't for me at this point in life as they are heavy. But I saw light weight metal rails on stags that makes me want to grab one of those up