AR upper/lower query

[Gorio]

Good day all. Checking if anyone is running a Loki upper with an LMT lower. Wanted to hear your opinions regarding fit and finish. Thanks much.

[mvician]

Fit and finish?

If all parts are made to and in spec, they will fit.

Unless both the upper and lower receivers came from the same forge house, and were machined at the same company, and then both anodized in the same bath, the finish will more than likely not be exact.