Left handed build

[machinedrummer]

I am in the process of assembling a aero gen2 lower. Bcm enhanced Lpk, Bcm buffer kit, Troy ambi-mag release and a seekins ambi safety. My question is, will a Rra left hand upper work on the lower? I know a Stag will. What are some other left hand uppers out there that would be worth considering? Timing has really messed things up with the current situation. I wanted to have this finished by November but now I may have to speed it up. The lower is complete. Thanks for any advice. This is being built for my son. It's "his" first Ar. I have a pretty good assortment including a Tavor which the brass clips him in the chin. Lol thanks again for any advice.

 

[dk.easterly]

I'm curious as well. Just gonna tag along on this thread.

 

[machinedrummer]

It appears the RRA uppers are proprietary to their lowers. But I'm not sure. If someone has a used one I would be interested in buying it. Thx

 

[Whitebread]

I wouldnt know what to do with myself if I didnt have brass crossing my field of vision.

 

[noob]

why not go with a complete left handed rifle? or at least start off with one? Though AR's are very modular, But when you throw non-standard parts into the mix, things can get iffy....