Never done business with these folks. Specs seem decent. And no waiting a couple of months on a rebate. Note the 10 round mag and $30 shipping.
https://abcrifle.com/ar-15-semi-aut...de-barrel-m4-stock-12-quadrail-handguard.html
https://abcrifle.com/ar-15-semi-aut...de-barrel-m4-stock-12-quadrail-handguard.html