Has anyone had any luck finding an 80% lower that a Palmetto State Armory (PSA) upper will work with reliably? PSA has had some great deals lately but clearly states their stuff is proprietary. As this proprietary goes, someone usually finds a way around it.
Plan B, are there any compatibility charts that help locate brands whose parts fit well together? I've wanted a 308 from day one but started building AR15s first because the parts were more interchangeable between brands. Now that I have a little experience under the belt, I want to try my hand at an 80% AR-308 with respect to reliability and economy for the first build.
Thanks