The best of both worlds,IMO,is the Officers Mod.receiver with the Commander top end. i.e. Colts Concealed Carry Officers. I've never been able to snag one at a reasonable price so, I've made my own with used Commander top ends. The steel or stainless receivers are great for belt carry but the Lightweight Officers bottom makes a really good shoulder rig.Wilson's 47D mags[8 rds] coupled with Wilson's base pads that allow full sized spare mags. to be used in Officers Mod. frames without over insertion makes a great combo.Try it ,you'll like it and you can sell the left over Officers top ends to recoup the costs! Nick