Going used was a good decision. The ACOG is a product that is built tough enough to stand a lifetime of use. The forging of the aluminum housing is solid, and it is as if the optical components themselves were set in stone. There is heft and solidity to the ACOG that can be appreciated upon picking it up. Like many readers, I had only seen genuine ACOG’s once or twice in person. It was really difficult to, without having ever “test drove” one, spend even what I did on a used model. As a piece of equipment, it is substantial in build quality.
The ACOG weighs 14 oz with included TA51 mount. The glass is clear with a chevron reticule and gradually fading red stadia lines. The tritium from this specimen is quickly picked up by a non-light adapted eye. Very bright stuff.
It has finger adjustable 1/2MOA adjustments hidden under the caps.
Eye relief is 1.5 inches. The optic is quick to acquire so long as either A) you, your ACOG, and your rifles LOP work well together or B) you have a adjustable stock. This optic is going on my primary rifle which has a VLTOR A5 stock system. With this setup I can comfortably position the ACOG and adjust my LOP to bring the ACOG quickly to the eye. A fixed stock such as the A2 and shorter arms may pose a challenge. I can see some people having to mount it at the rearmost slot which would preclude using a BUIS.
The rifle’s front sight is a ghost, and definitely not in the way. Pictures online show variable degrees of shadow, but in reality it is an incredibly faint effect.
The illuminated reticule is “red dot” bright in the sun/daytime though there is much less bloom than if I cranked up my COMPM4 to the same intensity.
Pictures online make the stadia lines appear tiny. They are small in the overall sight picture of the ACOG but they are not hard to pick up as pictures online purview. Once your eye swallows the sight picture of the ACOG you can find everything you need quickly.
Using BAC is somewhat difficult. You bring the optic to the eye, place color on target and fire. All this must be done instantly or the brain will pick up the clearer image of the 4x ACOG. The BAC concept seems to rely on movement. So long as the eye is behind the glass and the rifle is moving everything the dominant eye sees is a blur except for the bright chevron. The left eye can focus on the target / periphery and as soon as the brain superimposes the red color on the target, fire. The manual states not to seek a clear chevron… just put a color / streak / red on target and fire.
Any delay and suddenly your brain will switch to the 4X view and it will slow you down.
My question is, at close range, can I just align myself with the target and fire with reasonable accuracy? Do I need to use BAC at room distance? Does the BAC technique maintain accuracy at 25 yards?
I delayed my range trip to wait on this product. Can’t wait to give it a spin. I will be using it for a couple of months before writing my review. I know it’s good, but everything has an Achilles heel.