Fulton doesn't really 'make' their .308s, they just assemble parts. I think that everything they offer is just stock DPMS parts (with a different logo), aside from some 'custom' barrel options. Fulton generally does good work, but you will pay a hefty premium for their re-badged DPMS parts.
I'm not sure they are DPMS parts , I have ordered most of my lr308 parts from them and have gotten them pretty fast , week or two . Try to get a bolt or carrier from any one else, good luck , not to mention charging handle ,bolt stop screw or the stop its self .If they are DPMS parts they must have a good stock of them . Quality is quite good .
This is the variant thread .