Possibly. I think they consider Mod0 a wall hanger and remove the firing pin. I think it's actually safe to fire them with proper precautions, but I won't do it myself
Mod1 is clearly shootable with proper ammo, hence the price difference.
In general, the CMP prices are approaching (or surpassing as for the 1917s) the market prices. There are reports of Criterion barrels on the recently received Service graces. The bottom of the barrel is hear, I fear. As Bob (the armorer at the North Store) told me last year - the good old days are now, meaning that you can still get a nice Garand for reasonable money.