We have taken the current AR15 bolt to the next level by completely redesigning the lug and cam pin area as well using a stronger 9310 alloy to make this the most  durable bolt on the market.  
Extreme duty chrome silcon extractor springs.

Notice the thicker web between the recess and the lugs and the larger radius at the root of the lugs. The area of attachment was increased by 40% then the 9310 material  multiplies the strength.

These bolts are designed to replace mil spec bolts and work in Mil-Spec carriers they will not work in Adams Arms carriers because the AA carriers have a bore smaller in dia. than a mil spec carrier.

With the cam pin area and lugs the only areas that break on an AR15 bolt, we've re-engineered the area around he cam pin hole to be 17% thicker on each side of the pin.

The lug attachment to the web of the bolt has been increased by 40% with the addition of a larger radius at the root of the lug.

In addition to making the physical size of the bolt larger, we've made them from 9310 which is significantly stronger than most commercial bolt material which is 8620 cold rolled or mil spec bolt material which is carpenter alloy 158.