Best Scope or Red/Green Dot sites for Benjamin Trail NP Pistol???

[Nichelob]

After eyeballing this for a while, I found the Benjamin Trail NP pistol at a local Walmart on clearance for $54.  Don't know if this was a good price or not, but I pulled the trigger nonetheless.

Needless to say, the stock site is about as useful as a football bat.

Any recommendations on the best scope or red dot sights to get this puppy sighted in???  I've heard some stories about red dots breaking after a few hundred shots due to the recall of the pistons.  I just have no experience with this pistol and the best way to sight this in.

Thoughts? Thanks!!!