Are you willing to build the upper? Personally, I'm more than willing to build a lower, but I prefer complete uppers. And reputable makers, too.
.45acp, .40 S&W, 9mm, .38 Spl, .380 acp, 22lr
12 gauge, .223/5.56x45mm, 30-30 Winchester
2 Chron. 7:14 Christians must seek His face