There seem to be alot of posts regarding the cstock for M4s but not a whole lot on the cstock for the Supernovas. Any thoughts? I bought a Supernova Tactical with a PG stock and added a Nordic Components mag ext and a low drag follower for the fun of it. I love it. Anyway, thoughts on/pics of the Supernova cstock? Would the money be better spent on a Sidearmor rail system and shell holders? Thanks for the input.