ACOG RCO Mount
The LaRue ACOG RCO Mount is a precision quick-detach mount designed to position Trijicon ACOG optics farther rearward for improved eye relief and ergonomics. Originally developed for the ACOG RCO, this mount is especially beneficial for users running fixed stocks or body armor, while remaining compatible with all full-size ACOG models.
The contoured rear profile allows unobstructed access to the charging handle, and LaRue’s patented Speed Lever QD system delivers repeatable return-to-zero when removing and reinstalling the optic. Machined from solid bar-stock aluminum and finished with a durable matte black anodizing, the Larue ACOG RCO Mount is built for duty use where reliability and precision matter.
Each mount ships complete with mounting hardware, adjustment tools, thread locker, and installation instructions.
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Specifications:
| Mount Type | Quick-Detach (QD) |
| Optic Compatibility | Trijicon ACOG (RCO & all full-size ACOG models) |
| Rail Interface | MIL-STD-1913 Picatinny |
| Optic Position | Rear-biased for extended eye relief |
| Return to Zero | Yes |
| Material | Precision-machined aluminum |
| Finish | Matte black anodized |
| QD System | LaRue Speed Lever |
| Included Hardware | Mounting screws, QD adjustment wrench, blue thread locker |
| Made In | USA |
156 Reviews Hide Reviews Show Reviews
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ACOG RCO Mount
This mount is very well made and comes with everything you need, including a tool to adjust the tightness of the QD mechanism. Very impressed by the quality and the ease of use. My one criticism is how quickly it tears up your rail. The first time removing my ACOG with this mount, it was very obvious it had already removed the anodizing on my rail to bare metal. The scuffs it created aren’t gouging INTO the metal but it took that protective finish off immediately. The lock nut on the mount was installed per the instructions. I don’t regret going with this mount because of that but it’s something to be aware of
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ACOG RCO Mount
Great fit and fixed eye relief issues.
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ACOG RCO Mount
Where has this mount been my whole life, the actual trijicon mount for Acog’s is a complete joke compared to this..how did trijicon drop the ball so badly on such an important factor (eye relief) …. great job Larue!
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ACOG RCO Mount
Top notch--as expected by LaRue.
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ACOG RCO Mount
My LT681 gives me perfect eye relief for my ACOG RCO A4CP on my Colt A4. Just what I needed. Usual excellent Larue quality!
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ACOG RCO Mount
This mount should come with the acog right out of the box, the factory one is a joke. I have replaced both my acog mounts now and its a major improvement with eye relief.
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ACOG RCO Mount
Amazing
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ACOG RCO Mount
The Trijicon OEM mount for the 4X ACOG is mostly worthless. It places the ACOG in a position where you can't use it. I can't comprehend how Trijicon designed the 4X ACOG for the M4/AR-15 platform with the mount they included and the limited eye relief of the optic. This La Rue LT681 should actually be the OEM mount as it places the ACOG in the only position it actually works in.
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ACOG RCO Mount
The eye relief with the usual ACOG mount sucked and I didn't want to stick my head right up on the charging handle. This mount 100% alleviates that problem since it gives you so much more room to work with. I can now keep my head in the usual shooting position and can now see 100% of the view with the ACOG. Would recommend indeed, saved me from returning the 4x32.
