I noticed my 2017 TGO1 built gun does not have a Allen wrench to field strip to take apart the FLGR. Blue plastic bushing wrench yes. Spare grips & spare FO sight insets w L shaped tool and all paperwork but no Allen wrench. We’re these included in the box set when new ? And if not what size would work if I pick one up at Lowe’s/HD etc. thanks !