This caps and lanyard set for the ACOG is designed to fit those ACOG's that have an "external" Adjuster. This Adjuster has a higher profile than the "internal" Adjuster. The dial is black in color and is adjusted by finger touch.
The adjustment caps on my TA31F (4x32 Red Chevron) Mil-spec Trijicon ACOG were getting a little scuffed up, and they do not come with a lanyard, which I thought would be a welcome addition and an omission on the original. Upon receipt, I immediately tried to replace the caps, only to find that these ones are too small and are clearly NOT designed to work with any standard 4x32 ACOG -- i.e. the most ubiquitous ACOG version on the planet.
These work just fine on the ta01nsn. The problem the one user has is he didn't read and determine which model he had. If you have external (finger) adjustable knobs under your covers, you need these. If you have internal (screw driver) adjusters under your covers, you need the other ones. Also, to attach the lanyard, remove the upper right hand screw on the eyepiece and slip the wire behind the screw head then retighten. It will ride in a small channel behind the screw. See photo. If your trying these on a cheap Chinese knockoff clone, well, good luck and buy a real optic.
Came all dinged up and I gave them away. I found a better solution to this on eBay, under Original Scope Cap Leash. They sell just the leashes, since you already have your caps and make great leashes for under $4.00. I've installed them on my ARs and they've worked great and I saved a few. Oh and they come in all black that matches the ACOG, or Stainless for the nickel boron ACOG.
Fits perfect, functions and looks great.
Not the item I needed so cant post negative or positive reviews as It hasnt even been opened.
Excellent Transaction, Highly Recommend.
to small for what I needed but seem very well made.