Set this one up several years ago. Killer ... to say the least.
Started out as a NEF topper 88 with the thin barrel.
It's 3.7 lbs of goodness with a 20 inch barrel. Mr. Sumtoy cut and threaded the barrel and tapped a mount for the Venom red dot.
ATI discontinued this M4 style stock. It also has a M4 limbsaver recoil pad. Carlson's Tss choke.
Love this setup. I also found a ATI stock set for a NEF and installed it on a 301 savage 410. No need for a recoil pad on it.