There is an old saying "if a deal looks too good to be true, it probably is". It is possible to get a bargain on a scope, but most $100 scope deals are not. If you only have $100 and need a scope, I would go for this:
It is a gloss finish (the matte finish one is $20 more) But it is supposed to be the equivalent of a Weaver Grand Slam scope. That is what I would go for.
You may also consider saving up an extra $100 or so and buy a new Redfield Revolution or Leupold scope. That way, you own a decent scope made in the USA, backed with a real warranty. I have a couple of each and have been very happy with them.