Footprint like a Cell Phone
Even without a holster, the M3 has a natural footprint of a cell phone. In this configuration, you have 21 rounds of 9mm plus one in the chamber.
That means when unfolded, you have 22 rounds ready to fire immediately.
M3 Design – Safety by Design
Folding Trigger Safety: When the folding trigger was designed , it was made so that when the M3 is folded, it physically prevents the trigger bar from moving and engaging the trigger sear. This additional safety was engineered to give confidence in carrying a loaded round in the chamber, so when the need arises, it’s quick to deploy and engage.