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Desert Tech HTI barrel extensions.......

Hey what's the skinny with all the renditions of HTI extentions to aid in cam over. How does one figure out which combination is the correct one?
Thanks

It sure would be nice to know how to identify extensions as authentic DTA or aftermarket. DTA claimed that there is an aftermarket company making extensions.. anyone know where to get an aftermarket bolt and extension? Seems like a lot of liability and work to copy.