New KAC E3 Bolt Questions
I just received my SR-15 E3 IWS Upper. So while looking at the bolt I noticed a few things. First off no dirt groove on the bolt face. That is no big deal. Overall, no problems with it. But I did notice something different about the extractor that I have not seen on any of the various photos on the 'net. The exterior portion of the extractor has a groove with a small metal rod through it. I would assume this is for strength but it does not attach at the front of the extractor.
You can see it here in this photo I found.
http://farm3.static.flickr.com/2616/...e54f9d44_o.jpg
Anyone have any idea as to what it is for. I am sure it is there for a good reason. I just want to be educated on the function of it. Also, why did KAC do away with the dirt groove (no real added value, I assume)?