When I build my upper I intend to lap the receiver before I bolt the barrel up. My question is has anyone had trouble using the Browneels lapping tool on a Mega forged upper? I read a post from way back in 2011 where a user stated the tool wouldn't fit the Mega upper. Just wondering if this has been addressed, or if it's still an issue. I have access to a lathe, but I like the simplicity of using the lapping tool with a drill and some compound.
Thanks everyone in advance.