On amazon right now it looks like the Sparc is $30 more than the Strikefire. (yes I'm sure BF sales are soon)

 

But in general is the $30 more for the Sparc due to better features or is just a size/weight thing?

Smaller dot - 2MOA vs 4MOA.  I like the Sparc.

Smaller dot - 2MOA vs 4MOA. I like the Sparc.

Agreed. Size, weight, dot are positives that I prefer.

 

Drawback is a kinda uncommon battery and I'm not a huge fan of where the power button is located.

I'm not a huge fan of where the power button is located.

 

It's the same place as on the Strikefire.  I'm ok with it.

It's the same place as on the Strikefire. I'm ok with it.

I don't have the strikefire but I was comparing to the other rds's Ive had.

Ive had the sight turn on a couple times in my range bag and once had the rubber control panel ripped off. They fixed it no questions asked but still kinda sucked.

FWIW, I have all three and I think this one is the best buy:  http://www.amazon.com/LUCID-HD7-Red-Dot-Sight/dp/B004BDLJX4/ref=sr_1_6?ie=UTF8&qid=1384984806&sr=8-6&keywords=sparc

 

 

ETA:  My Lucid is a Gen II.  The newer one I linked is supposedly improved in a few areas. 

Lucid is lower 1/3 co-witness.  I like full co-witness.  SPARC does both.

Lucid is lower 1/3 co-witness.  I like full co-witness.  SPARC does both.

 

 

Good point.  I no-witness on all my set ups w. RDS, so I didn't take that into account.