Vortex SPARC or Trijicon Reflex R30A?

[Crossbones]

I'll be getting my 10.5" RRA shorty AR soon and was wondering which sight I should get? I've heard good things about the Trijicon and the SPARC, but aside from the price difference is there anything else I should be looking at between the both of them? Thanks in advance for any advice or opinions.

 

[KDX]

I just received a SPARC today and mounted it on my XCR. The initial impressions that I have are pretty good. I couldn't give you a comparison though.