If the ACOG is set-up and used properly, the mag is not an issue, even for CQB.
The BAC effect, which requires both eyes open, makes the optic funtion basically as an OEG until the dominant eye acquires the target and focuses on it. Till then, the dominant eye is just picking up the reticle as an aiming point.
I have seen guys run flip-up opaque covers or put a strip of tape over the objective lens to get the full OEG effect. You can always flip it off for a longer precision shot. The Killflash also helps with this.
You may want to do some research into the Bindon Aiming Concept and try it out. I would recommend mounting the optic as far forward as possible to get the best effect. That is the deficiency in the TA-31. Due to optical principles, it does not have the eye relief of the TA11 or Compact ACOGs.
The BAC works great for me though.
TR
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"It is not the critic who counts; not the man who points out how the strong man stumbles, or where the doer of deeds could have done them better. The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood; who strives valiantly; who errs, who comes short again and again, because there is no effort without error and shortcoming; but who does actually strive to do the deeds; who knows great enthusiasms, the great devotions; who spends himself in a worthy cause; who at the best knows in the end the triumph of high achievement, and who at the worst, if he fails, at least fails while daring greatly, so that his place shall never be with those cold and timid souls who neither know victory nor defeat." - President Theodore Roosevelt, 1910
De Oppresso Liber 01/20/2025
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