Need an optic FAST

Okay, so this is going on my KWA M4 and I need to order soon So I can get it here and Zero it in before my OP on the 24th.
I like the open red dot kind, for very quick target aquisition if my target is close and suprises me and I need that quick snap-on target aquisition...like this:
http://www.airsoftgi.com/product_info.php?cPath=36_340&products_id=2905

But I came across THIS and I really like it...
http://www.airsoftgi.com/product_info.php?cPath=36_340&products_id=2321
But I'm afraid I wont be able to snap on to closer-ranged targets quick enough. Is this fear justified guys? Which would you go with?

I fell in love with the b-2 but they should both be ok because the magnification is 1x and its about the same just a differing length of the optic

but if you want CQB the b-2 reflex is the best

The best you can do is an EOTech or EOTech replica. Out of those two you linked though, I'd take the B-2 for quick target acquisition. Always pick function over looks, IMHO.

B-2. You'll have a greater field of view since it's an open sight.

Just got the B2 for $15 from a friend
so where can I buy batteries for these things guys?? What kind of stores

Can you give me a pic of the batts? I could probably tell you then. I'm going to guess they're CR123As. Batteries Plus should have them

They're the big, flat pancake-like watch batteries. They look like a quarter

Oh. Batteries Plus or Walgreens, I'd say.

M14 double-taps wrote:

so where can I buy batteries for these things guys??

At gunpoint.

Haha..

Walmart, CVS maybe, Fry's Electronics