Posted: 10/20/2010 6:01:26 AM EDT
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Mark,
What is the height and weight of the LT660HK compared to the LT751. The reason I ask, I want to try a Vortex SPARC on a fun gun. From what I have researched, the LT660HK gives a near perfect co-witness with this optic, which is what I like. I would prefer the increased FOV the LT751 offers though. Thanks for your time, keep up the good work. |
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I don't have the weights, but the LT660HK puts the centerline of the optic 1.31" over the rail, the LT751 is 1.40"
Assuming you're putting them on a standard AR, the HK mount rides lower than standard irons (irons are higher than the centerline), while the LT751 is exact cowitness. |
| The HK mount with a SPARC gives you perfect co-witness from what I can tell. The SPARC comes with shims, and if you use the small one, you'll get something like a lower 1/4 co-witness. The standard height aimpoint mount is of course too high for any co-witness. I'd be curious to see where the extra .09 (from the HK mount height) puts the SPARC. it might be usable. If you try it, be sure to post a report. :) |
| Look like the LT751 is going to be too high for this optic to co-witness irons. Due to the SPARCs design, it's center is a little higher than a T-1. This info from Sam at Vortex. The LT660HK is going to be the way to go for an absolute co-witness with the SPARC. Just wish I could afford the Aimpoint, then all this would be a moot point. |