Don’t Forget The Optic Mount

February 7, 2013 By Leave a Comment

Visit any internet gun forum or blog and you’ll see plenty of posts and questions about which brand of AR-15 is the best, or which barrel to buy for the next rifle build, and so on. And while these are definitely legitimate questions, shooters often overlook a critical part of the equation: the optic mount.

The optic mount is one of the least “sexy” parts of a rifle. All it needs to do is keep the optic in place, right? Well, it’s a bit more complicated than that. The optic mount should maintain zero, yes, but it should also be easy to use.

GDI optic mounts excel at both these purposes. They’re engineered to provide return to zero within .01 MOA when removed and reinstalled, and are robust enough to maintain that zero as long as they’re mounted.

In addition, every interaction the user has with a GDI mount is a smooth and easy one. For tube-style optics, horizontal split rings with the mounting screws attaching from the top make for an easy optic/mount installation process.

From there, the attachment to a picatinny rail is also easy, with an auto-locking quick detach (ALQD) lever that allows for one-handed installation and removal, with no chance of forgetting to lock the lever in place. Also, this design prevents unintentional unlocking of the lever, and adjustment for worn or out-of-spec picatinny rails is easy in the field.

There are a lot of things to check out when looking at new rifles or parts – but whatever you do, don’t forget the optic mount.

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Independent Review of GDI CMC5-OSM Aimpoint Mount

September 6, 2012 By Leave a Comment

“Cowboy_bravo” has posted a review of the CMC5-OSM Aimpoint mount on Lightfighter and Sniper’s Hide. An account is required to view the Lightfighter post, but anyone may view the Sniper’s Hide post. His review includes a history of his experience with mounting systems, photos of several mounts, and a return-to-zero comparison.

The CMC5-OSM is an “absolute cowitness” mount for standard height AR-15 upper receivers. When used in conjunction with iron sights, the red dot of the Aimpoint will line up perfectly with the iron sights when the optic is viewed directly from the rear. The CMC7-OSM offers “lower third” cowitness with standard receivers and the CMC2-OSM is designed to provide lower third cowitness with the higher RAS II rail system. Lower third cowitness places the dot higher than the iron sights when the optic is viewed directly from the rear, but cowitness with and use of iron sights is still possible by viewing the optic from a lower height (approximately one third of the way up from the bottom of the sight, hence the name “lower third”).

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What Would You Like To Know About GDI Mounts?

August 31, 2012 By Leave a Comment

In the coming weeks and months, we’ll be putting out articles and videos featuring GDI mounts. While these features will explain the versatility and robust nature of our products, we’re interested to hear from customers and potential customers about what they want to hear or see. What do you know about our mounts, and what don’t you know, or what are you not sure about? Return to zero? Ease of adjustment? Long-term wear on rails compared to competing mounts?

Let us know, and we’ll get to work.

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