Just read and article in Spec Ops Technology (SOTECH), a PUBLIC periodical, that says they are looking at the G37 real hard. Some of their requirements are- the pistol must have a light rail (got one), be reliable (no brainer there), and size must fit everyone (bingo). They were very impressed with the size, and the fact that parts are interchangable with other Glocks (frame, trigger, etc,etc). Caliber was up in the air, but it sounds like they are leaning towards a .45.