The latter provision came in response to the July 16 attack on defenseless military personnel in Chattanooga, Tennessee.
The provision expanding military-to-civilian gun sales means the Army's "excess M1911A1 pistols" can now be sold to civilians via the Civilian Marksmanship Program (CMP). That program was long known as being a way for civilians to get the classic M1 Garand military rifle, and will now be a way to get the equally classic and historical .45 auto.
Expanding military-to-civilian sales also saves tax dollars in that it currently costs "approximately $200,000 a year" for the Army to store the handguns "in a warehouse."
CMP Web Site