Otis Rail Gauge?

[TCBA_Joe]

I saw the go/no-go gauge for picatinney rail systems Otis premeired at SHOT in '10. Has anyone seen this in person or know where to get one?

http://www.thefirearmblog.com/blog/2010/01/20/otis-enters-ar-15-accessory-market/

[interfan]

The blog post you show is for Otis' rail system. They made go-nogo gauges for themselves (or for some customer). I don't think they made gauges for sale as a tool; but a quick call or email to them could answer that.

The majority of the quality rail systems (DD, KAC) designed for military use are within a close enough spec to use without any problem. (Yes, I know ARMS does thier own spec).

If you are machining rail systems, a go-nogo gauge may be something of interest. But if you are doing machine work, you can make your own to the 1913 specs.

Between quality rail systems, a little tinfoil and some loctite; quality components won't really move to the point that it compromises function. When something like a light or vertical grip starts wobbling, it may just be time to replace it.

[Quiet-Matt]

You can check pretty easily with a caliper...

http://www.biggerhammer.net/picatinny/rail_profile.gifhttp://www.biggerhammer.net/picatinny/recoilgroove.gif