Awesome optic - Trijicon 4x32 ACOG Scope M4A1 Rifle Scope w/ Amber Center Illumination

This is the exact ACOG I used in the Army for 6 years. It is durable, reliable, and has very clear glass. I know everyone likes the ACOGs with the fiber optic chevron, and I don't blame them, but there is nothing wrong with this version. It is a lightweight alternative to running a 1-4x scope on an AR. Yes, you cannot adjust the magnification, but if you learn to shoot an ACOG properly, with both eyes open, you will see that it can act as a reflex sight or give you some needed magnification for longer distance.