ejection port cover pin groove

[308reloaded]

I am installing the ejection port cover, I did not notice until pin and spring were installed that the pin does not have a groove for the hinge pin snap ring.. is this normal. or did I get faulty part.. all my 5.56 build have a groove about 3/8" from end of pin.  does the LR-308 have the groove?

[imschur]

hell i dont even see the clip on mine

[308reloaded]

the clip on the AR15 is to keep pin from falling out, because the hole on buttstock side is not a blind hole,  on the LR-308 it is a blind hole ,, but it looks like it could move and go out barrel side thru  free float barrel nut  holes