The new IHPS, slightly larger than the ECH, features a boltless retention system, so the Army was able to eliminate the holes where the chin-strap was previously bolted in place.
"The challenge with drilling holes in the helmet is that you weaken the material," Whitehead told Military.com. "With this new helmet, we have gotten rid of the four holes drilled in the side."
There is still one hole in the front of the helmet for soldiers to mount night vision devices, like the Army's new binocular goggles with the ability to connect to the sights on a soldier's service weapon, allowing them to shoot from the hip and around corners.
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The Army, according to Defense News, is working on a Universal Helmet Mount for such devices that will eliminate the final hole, allowing future helmets to offer even greater protection. Night vision goggles are not the only available add-on though.
The removable rail sections on the sides allow for the mounting of lights and other relevant accessories. The bigger helmet also offers more space for comms devices, and protective additions such as a visor and ballistic applique are also possibilities.