Taylormade M4 4H-5H-6-Pw Iron Set RH 37" Steel Regular Taylormade Grips
FAST & FORGIVING 
The duo of RIBCOR and Speed Pocket promote face flexibility for efficient energy transfer at impact and enhanced forgiveness.
The TaylorMade M4 irons replace the TaylorMade M2 2017 irons which was their most popular iron last time around so it has a lot to live up to.
What the M2 was renowned for was distance and forgiveness and the M4 irons continue in this vein.
The Speed Pocket on the M4 sole is still there but is now a longer, slimmer curved line rather than the dumbbell shape of the M2.
To help reduce the loss of energy, TaylorMade has added RibCor bars behind the face slots in the heel and toe of the M4 irons to stiffen the upper portion of the head.
This also positions more mass in the heel and toe of the 450 stainless steel head and they claim an increase of 20% in MOI or resistance to twisting at impact which is pretty significant.
Keeping the weight low is the same Fluted Hosel as before that takes weight away from above the CG and moves it lower down and back to help the launch and forgiveness.
All of our clubs go thru a spec check where the loft, lie and heads are checked. Clubs are then buffed so they can have the best appearance possible. Re-gripping is then done if needed.
Shipping included in prices.