The LA have the same bolt spacing. The centerfeed stuff fits in a LA staggerfeed stock just fine. The other way around requires a little dremeling in the mag well area. The actions can't readily be converted from one style to the other, or at least a centerfeed to staggerfeed conversion would require lots of millwork and you'd be going backwards anyhow. I think all the bolt stuff and trigger stuff will swap though, at least on my LA they did. SAs are a different animal though.