Wondering if it's a little too cheap..

[Inade]

So basically I wanna buy out a reflex sight for my m4. The rail is a standard 20mm accessory rail (RIS), and my budget is around 30$.

I only want a reflex sight since i'll be using my m4 for CQB 99.9% of the time, meaning an acog or a different type of scope won't do too well.

here's the auction on ebay: here

jsut wanna know if perhaps the illumination won't work too well, cheap body, or w/e. thanks again

EDIT: if you can find any low-priced reflex sight, mind linking me to it? thanks again, Inade

EDIT EDIT: i found another one, just under the budget: here
i calculated over-all price and it comes to 27.29$ Canadian. Which one should I go with?

[The Acer]

it wont have trait and a lot of people like to have the traits,
looks alright from what i see

[immortalundead]

those might not be good for cqb, it will probably not line up with your sights at all, a friend of mine has a cheap one like the second, and its of no use, its pretty much is only used for looks. you might wanna go with one of these, very good quality, and perfect for cqb http://www.airsoftcanada.com/showthread.php?t=52805

[Inade]

Only problem with buying from the classifieds is that i'm not allowed to access it. ie: I'm 14.

But anyways, i thought retailers were allowed to sell accessories to minors, just not any guns?

EDIT: My bad. ignore this post. In fact delete it please.