Ken, the barrel length will work for sure  -but allowing a full size grip/frame in CCP is the choking point for most (myself included).     The overall height of a Glock 19 or even the Colt Officier's ACP would have been a good limit, IMO.    

Having said that, me and my G19 ain't scared of no 1911 ...   Glasses

MarkT
A32608
SSP/MA (TXst2011)
ESP/MA (TXst2012)
CDP/MA (TXst2013)
CCP/MA (Classifier2015)
BUG/MA (Classifier2015)
REV/SS (can't find a Glock Revolver, rats)