The new trigger pack came in. It reminded me why I replaced everything on the old one. Now I have to decide whether to switch stuff out or leave it stock. The Manticore Mags don?t seem to have enough spring pressure to lock back the bolt hold open but that may be due to new and stiff rather than then mags, they do drop free. However, the CZ OEM 30 rounders lock back the bolt but don?t fall free....go figure.