Description
If you're running an Aimpoint CompM4 or CompM4-S and want a mount that won't budge, the LaRue Tactical LT659 is about as proven as it gets. This is the quick-detach solution built for the newest version of the US Army's M68 Close-Combat Optic, and it carries all the LaRue DNA that earned the brand its reputation. It's precision-machined from bar-stock aluminum and finished with a matte black hardcoat anodize that keeps glare down and shrugs off the beating that comes with real range and field time.
This particular version is the Tall 1.725" height, which puts your CompM4 at a lower 1/3 cowitness on standard AR-15, M16, and M4 flat-top uppers. That height plays nice with backup iron sights and lines your optic up cleanly in front of a LaRue Pivot-Mounted Aimpoint 3X magnifier or a PVS-14 if you run night vision. It clamps onto any Mil-Std 1913 Picatinny rail and sits rock solid.
What Makes the LT659 Speed Lever Different
The heart of this mount is LaRue's locking Speed Lever. You get true tool-free attachment and removal, and the return to zero is the real deal. Pull the optic off to pack it down or swap configurations, throw it back on, and your point of impact stays put. LaRue backs that up, and it's the reason these mounts get trusted on duty and competition guns alike.
Setting Up Your LaRue LT659
Installation is quick and painless. Snug it to your rail, set the tension, and you're headed to the range in a few minutes. The mount comes with everything you need to get it dialed, including replacement mounting screws, a wrench, a QD adjustment wrench, a vial of blue Loctite, and instructions. For anyone building out a serious CompM4 setup, this is the kind of hardware you buy once and stop thinking about.
Key Specifications
- Manufacturer: LaRue Tactical
- Manufacturer Part Number: LT659
- Model: Aimpoint CompM4 / CompM4-S QD Mount
- UPC: 810143180077
- Mount Height: 1.73" (Tall, 1.725")
- Cowitness: Lower 1/3
- Optic Compatibility: Aimpoint CompM4, CompM4-S, M68 CCO
- Rail Fit: Mil-Std 1913 Picatinny
- Material: Bar-stock aluminum
- Finish: Matte black hardcoat anodized
- Attachment: LaRue Speed Lever, quick-detach, tool-free
- Color: Black
- Weight: 0.25 lbs
What’s Included
- LaRue Tactical LT659 QD mount
- Replacement mounting screws with wrench
- QD adjustment wrench
- Vial of blue Loctite
- Instructions
Frequently Asked Questions
What optics does the LaRue LT659 fit?
The LT659 is purpose-built for the Aimpoint CompM4 and CompM4-S, which is the same optic as the US Army's newest M68 Close-Combat Optic. It's designed around those specific larger Aimpoint bodies, so it clamps them up cleanly and securely. If you're running a CompM4 series sight, this is the mount made for it.
Does the LT659 actually hold zero when you take the optic off and put it back on?
Yes, that return to zero is the whole point of the LaRue Speed Lever design, and LaRue guarantees it. You can pull the mount off to pack it down, run night vision, or swap setups, then reinstall it and your point of impact stays consistent. It's one of the main reasons these mounts are trusted on hard-use rifles.
What height is this version of the LT659?
This is the Tall 1.725" model, which places the CompM4 at a lower 1/3 cowitness on standard AR-15, M16, and M4 flat-top uppers. That height clears most backup iron sights and lines the optic up in front of a LaRue Pivot-Mounted 3X magnifier or a PVS-14. It's the go-to choice if you plan to run a magnifier or night vision behind the dot.
Do I need tools to install the LT659?
Attachment and removal are tool-free thanks to the Speed Lever system, so mounting and dismounting at the range is fast. You will want the included wrenches and blue Loctite for the initial setup and tensioning of the mount to your rail. Once it's dialed in, you're working the lever by hand from there on out.




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