Glock site question

[4wheels]

So I just got my first Glock - it's a G34. With Meprolight night sights. But when I look down the barrel it seems like the site is to the right too much. But I have never set a site on a gun and this might be an optical illusion. This 34 has been a safe queen for the past few years and does not seem to be very used at all. Or someone knows how to clean a gun to absolute perfection.

So how do I tell if the rear site is on correctly? I am taking the Glock to the range tomorrow. I am looking forward to a pretty amazing shoot. I just gave the Glock a little CLP just to make things move easier. Not sure the Glock needed it though.

[bm22]

Shoot it and see where it groups... If it's off you can tap it to the left or take it to a gunsmith with a sight pusher.

[tvc184]

Shoot it and see where it groups... If it's off you can tap it to the left or take it to a gunsmith with a sight pusher.

That is about as plain as it gets.