Hi william, any lower that is 7075 T6 forging and is mil. spec. regardless of what name is stamped on the side will all work with mil. spec. parts. I just received a lower from Tactical Innovations for $99.99 and it is one fine lower, you NEED to check them out. Why spend $150 and up for a lower that has a cool logo or big name, you are just throwing money away.