It's not loaded, is it? No personal eperience with ATI shotguns, but have you tried pulling the trigger? I really doubt pulling the trigger is required to break it open, but being the initial assembly, it may be in an awkward bind of half-[censored] or something like that. Just spitballing here. Good luck with it.
Edited by Slow Drifter (07/20/16 04:53 PM)
"I have no idea what WW-III will be fought with, but WW-IV will be fought with sticks and stones."