Took my new SuperX4 12ga apart and now having trouble putting it back together. IWatching U Tube videos, something I should have done first, it appears you must lock the action back before disassembly and I did not. Is that a possible cause of my difficulty? If so, how do I solve it? Of course my complete lack of mechanical ability is the true source of my difficulty but there is no fixing that. Thanks for any help.