Any idea if the stocks that Stocky's has in stock are designed around the traditional side-bolt release or the newer bottom/trigger guard bolt release setup?

I've got a 12 LRP (Target Action 4.40" SA centerfeed repeater) and a 10PC-SR (regular 4.40" SA centerfeed repeater) and the former uses the 'old' bolt release, and the other the new style - and as such, they won't drop into the same stock, etc.