Quote Originally Posted by Fathom_Arms View Post
Sorry for the delayed response. I have yet to ran across one upper that our BCG did not fit. I would think the Lantac would be just fine. However, I have not played with a Lantac upper to verify. Has Lantac said if the upper can run with a standard cam pin or does it require the rounded cam pin?
I'm fairly certain all the Lantac Uppers come with their priority cam pin to swap out. However I'm not certain if it will run without the rounded cam pin