2 aircraft and 3 cabin layouts, from the A320 to the A320neo. Pick one for its seat map, the best seats and the seats to avoid.
There are seat maps for 2 Atlantic Airways aircraft here: the Airbus A320 and the Airbus A320neo.
The Airbus A320, with 174 seats: 174 Economy in its main layout.
The Airbus A320neo, with 29" to 32" of seat pitch in Economy and seats 18" wide.