Red Dot for Shotgun?? SPARC or Primary Arms

[mikeinla]

I have two Remington Versa Max 12 gauge shotguns. I was thinking about adding a red dot sight to one of them. I also have a couple red dots sights laying around. Would either of these sights hold up to a 12 gauge??
Vortex SPARC

http://www.opticsplanet.com/vortex-sparc-red-dot-sight-sprc.html

Primary Arms

https://www.primaryarms.com/Primary-Arms-Micro-Dot-with-Removable-Base-p/md-06l.htm

[border.bandito]

i have a bushnell trs25 on my 12g, it holds up great.
similar to the PA one you have listed.