I guess it is an increasing curve kind of thing. But a person wishing to buy even an 870 has multitudes more choices to make than the five or six choices an RBL buyer makes.
According to the
CSMC RBL update page Alterations - We do not offer any type of gunsmitthing on these guns. No recoil pads, no stock bending, nothing. The reason we do not do this is we are trying to standardize it to keep the cost of the gun in line.
It seems that CSMC would like people to think of the RBL as a production gun.
On the other hand they are making guns for specific people so in that sense it is different than the person who chooses an already made 870.
