Well that wasn't much of ann upgrade Gtscotty!
Looks like with the T3x, except for trigger bits just about any aftermarket "improvement" like the bottom metal, bolt shroud etc is pretty much cosmetic? The marketing wank is pretty funny though, like the Mountain Tactical bolt shroud acting as a "third lug" to keep the bolt straight and improve accuracy
Although, have to admit I love this stainless bottom metal, purely for looks/class.