The 1911A1 is one of the most concealable pistols I have owned, when the holster matches the style of clothing I wear. Overall length is rarely the issue when CCW, but becasue it is so slim it has distinct advantages over some shorter revolvers.
I CCW a 5" 1911A1, a Springfield XD-45 or a Glock 29 10mm every day.
My S&W 442 .38 Centennial is still carried quite often as a pocket carry defense gun.