View Full Version : U.S. Optics Posa Slide Lock mount
Hi has any one here use a posa slide lock MK1 Mount. I have a Sadlak scope mount on my M1A Rifle. The Posa slide mount is supose to tighten via knob on the rail . The knob is tighten all the way but the scope moves a little on the Sadlak mount rail. The scope is tight in the rings but the slide mount is moving a little on the sadlak rail. Has any one had this problem? Any info would help. Thanks Wedge
05-20-2007, 8:02 PM
Yup. My SN-4 had the same problem with my GGG flat top rail. I sent both pieces in and had the USO mount fixed.
05-20-2007, 10:06 PM
When the mount is moving relative to the rail, sounds to me like it's a Weaver rail vs. Picatinny width issue.
The sadlak mount rail is Picatinny, so is the U.S Optics Posa slide mount a Weaver?
05-22-2007, 8:49 AM
Looks like Picatinny to me, but they don't specify in the description.
I've measured a lot of rails and accessories, and there's quite a lot of stuff out there that's close but not quite Picatinny spec.
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