After all, the best gun to have on you in case things go south is one that you can shoot well and some people just don't find most small pistols measure up to their satisfaction.
You can conceal a lot of gun under a coat with the right holster, so pretty much anything up to, say, a Desert Eagle or the largest of revolvers can be concealed. However, there are some full-size guns that are easier to conceal in a high-riding OWB or even IWB holster than others.
Length is obviously better on the short side, so barrel lengths of 4.5 inches or less and overall length of 7.5 inches or less would be preferred…though depending on whom is carrying it, this might not be uber-necessary.
Read more at https://www.lewrockwell.com/2017/03/no_author/best-full-size-guns-concealed-carry/.