shotgunkev

Hi everyone - Can anyone tell me if the tactical stock of the m4 can be easily removed and replaced with mesa urbino stock (or even the stock PG stock), or if the process is more involved than if one was to replace the PG stock? I guess my question really is, are extra parts needed to replace the tactical stock on the m4 with a mesa urbino or benelli PG sotck? And if so, what are they called? Thanks for any tips...