[WYGrizzly]

Can you see the same in the inside surface of the receiver? Does look to be an impact induced crack as mentioned above from the op rod and bolt moving rearward too far you can see the op rod track seems odd

 

[WYGrizzly]

The picture was pulled from a GB listing.

Definitely a pass one this one situation. Gotta a GB number?

 

[WYGrizzly]

1123334162

An M1 according to the listing.

 

[WYGrizzly]

Yes, an M1. Sorry if I wasn't clear on that

No trouble.