PSA Glock mag fed ARs?

[Dave]

Thanks. I was kind of looking at the Rock River stuff the other day. Glad to hear positive feedback on them. Not sure if they would be compatible with a Glock mag lower but I bet a little minor machine work on the bolt would make it work.

I planned to buy a PSA upper for mine. The one I want isn't in stock at this time though. I figure their lowers and uppers are designed for each other and I don't have the tools or skills to machine out an upper.