This is the rugged one with the 12" blade. It is setup on a portable bench with wheels to be put on a pair of saw horses. We used this for building two decks. The 12" capacity is enough to handle all of the four by structural stuff. The bench was custom made for this saw.
The Milwaukee corded miter saws have longer rails than their or anybody else's battery powered saws. This enables them to cut wider stock - roughly 12". It also has a digital readout for setting the angle.
As shipped by Milwaukee, there is only one hold-down clamp with the idea that you would switch it from side to side as needed. We ordered a second one so it's always there without that fuss. Newer versions of the saw (different model numbers) come with no clamps in the box, although they are available as accessories.
The custom mini-bench is on 4" non-swivel plate casters so it is easy to roll into and out of the bed of a truck.