Difference between Vortex SF-BR-503 and SG-RG- 501 red dot scopes?

[kjohn]

I have been looking at these scopes and can't seem to pick out the difference. Can someone point out what differences there are?

Thanks in advance.

 

[Ar180shooter]

Bright red dot VS Red/Green dot.

It would help next time to post that you are looking at the Strikefire II red dots too... I happen to know the item SKU but most people won't.

 

[kjohn]

Thank you. Probably won't be a next time.