The Titleist AP1 is designed to be a very forgiving and very long iron.
The 360° undercut cavity in the back of the head moves the Centre of Gravity (CG) low and back to increase launch and forgiveness.
Titleist AP1 Irons are very playable and are a great choice for mid-to-upper handicap players.
The Titleist AP2 Iron is designed for better players looking for accuracy and control.
Titleist tends to be more conservative in their modifications and players used to Titleist's consistency will find the AP2 follows this tradition.
If consistency and reliable performance are what you're looking for, Titleist AP2 Irons might be the choice for you.
The Titleist 716 T-MB Irons feature great distance and very forgiving performance.
The 716 T-MB is aimed at the game improvement golfer that needs more ball speed with great launch angle for better long-range play.