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
Absolutely amazing. Locks as smooth as butter.
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ACOG RCO Mount
Short version: Buy it. Long version: I have a TA31 RCO and have previously used both the factory dual thumb screw mount as well as the LaRue LT100. Both of which are fine with a collapsible stock, but I recently got the LT681 to use my ACOG in conjunction with the full-size A2 stock and haven't looked back. In my opinion, it's a must for proper eye relief with the RCO and an A2 stock. Build quality is perfect and there was no loss in zero after removing it multiple times, as expected from LaRue. Highly recommend.
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ACOG RCO Mount
The LT681 perfectly mated my ACOG and LWRC rifle. Great craftsmanship and form/fit for my purposes.
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ACOG RCO Mount
Fantastic little mount, easily on par with Trijicon's own. A little dirty out the package, but nothing that didn't wipe right off. Smooth finish, and solves the problem I've had with eye relief. Fully recommend!
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ACOG RCO Mount
LaRue acog RCO mount is phenomenal! Standard LaRue quality and service! Highly recommend!
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ACOG RCO Mount
I have a LaRue LT 100 which I had a few misgivings about, the locking levers interfered with the charging handle. It is well made and the usual LaRue quality product. I even made a few suggestions about the issues I had. However, had I looked through the catalog more carefully I would have seen the LT681 which does exactly what I needed. Locking lever on the right side, and cut outs so you can get your fingers on the charging handle without being interfered with. I realize that all I had to do with the LT100 was turn it around, but I didn’t like the Trijicon sticking out from the mount. I gave both mounts a 5 armadillo rating because they are quality products.
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ACOG RCO Mount
Great mounts! Purchased 3 for each of my ARs with ACOGS. Great company, fast shipping and made in America! What else can you ask for.
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ACOG RCO Mount
I own several LT Mounts, but bought this one specifically hoping it would fit a Sightmark Wraith digital night vision optic. Fits perfectly and gives another couple of inches of eye relief which makes this THE mount for this optic. Liked it so much I ordered another one for a 2nd Wraith.
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ACOG RCO Mount
Larue mounts set the standard! I will not buy any other QD mount. They are the industries best QD mount. - in my 23 yrs military Svc
