As a comparative example, I shot a carbine match in 2011 where I was holding hard to the KISS iron-sighted carbine principles. I even took a Vickers Carbine class that same year with an iron-sighted carbine and beat out a lot of guys shooting guns with Aimpoints and Eotechs. However, when I gave in after the Vickers carbine class and put an Aimpoint on my carbine, my performance went up quite a bit. The RDS on a carbine is a force multiplier compared to shooting irons. That doesn't mean you cant do good work with irons, but its faster, easier, works better from odd positions, is more forgiving of poor index/head positioning, etc etc compared to shooting irons.
So, with all that out of the way, is it the same thing with an RDS on a pistol? In other words, can I expect to go buy an MOS Glock, bolt an ACRO to it, and see an instant real improvement in my pistol performance (accuracy at distance, speed, transitions, basically the visual part. I realize that grip and trigger have to still be there)?
Or, is it a "nice to have" but you're still better off with 3 G19's with good sights than 2 G19's; one having an ACRO?
Thought partially initialized from this post: