PSA AR-15 "APPROVAL-15" - STRIPPED LOWER RECEIVER $29.99
https://palmettostatearmory.com/psa-ar-15-approval-15-stripped-lower-receiver.html
Approval-15 Fire Selector: "NO & NO" (Safe), "MAYBE, BUT NO" (Fire), "YES, BUT REALLY NO" (Full-Auto)
Disclaimer: I am not affiliated with PSA... but I totally want one!