You can kill two birds with one stone

Make the upper and lower so the are cross compatable with LMT/KAC/Larue uppers and lowers

Also make the upper so it will work with the SR-25 URX, that way all of us guys with LMT/Larue pattern guns can build light weight uppers to replace the LMT upper without the KAC price.

If you do this you will create a cheap yet great 308 upper/lower and fit the need of a low price/lighter receiver replacement for us LMT owners

FREE