If you want to go with the truly finest 80% semi RSP available on the market go with Sam Alvarez. He is the only one who offers a true 99.99% correct engraving on his RSP. Addiitionally the receivers receive a proper Mil-Spec heat treating with a written report from the heat treater with each receiver. Truly the finest. It can take a few months for Sam to make a run, but it's well worth the wait. Price is around $180-200 and worth every penny
SHOP: 860-628-8174...7a-4p EST...M-F
It's best to call him - he gets behind in his e-mail at times. Be sure to talk to Sam himself. He has a gruff partner/helper
ORF RSP is an excellent plate but Sam's are the best. Todd's engraving is very close but not exact like Sams. Upswing is Todd's RSP are more readily available - but Sam's are a true masterpiece.