Heavy and clear - Trijicon ACOG 6x48 Rifle Scope w/ Fiber Optics & Tritium

At this point, everyone knows that Trijicon ACOGs are some of the best optics. This version is humongous and heavy. If you're getting this you probably will fall into one of two categories (or both):

1) Stationary shooting
2) You're a physically strong person

Keep in mind that this optic is also very expensive. If you want an ACOG and you plan on doing a lot of running with your rifle than you may want something lighter. If not then by all means, get this.