4th group: with cover and raises front, side, back, inside with some pads removed
5th group: nape interior (Suede), 3M branded locking mech for chinstrap (tow back, two front), J hook attachment for helmet cover and J hook attachment for side rail, side by side ACH and IHPS without a level base or anything to measure against, sorry.
You’ll notice in the one with rails versus the one without, the one without rails still has the brown filler screws in the holes where the one with rails has black screws in it holding the rails on. They are just a tad bit longer obviously.
For install