
Originally Posted by
mtdawg169
I have seen several E3's and owned three. Only one ever had the "dirt groove" in the face of the bolt. My understanding is that feature has been discontinued from the E3 series.
There has not been a change to the gas block, but the gas port has been enlarged since the initial release of the rifle. It would be very difficult to know if yours has the new enlarged port without taking it apart. Easiest way to tell is to shoot it. If you have issues with low powered .223 ammo, send it in to KAC and they will fix it. Chances are, you won't have any issues at all. But rest assured, if you do, KAC will take care of you.
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