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Archived [ARCHIVED THREAD] - Extra part w/rear sight kit? What is it for?
Posted: 9/26/2004 6:08:01 AM EDT
I received 2 A2 rear sight kits from DPMS. 1 kit had correct parts but 5 springs for the flip sight. The other kit had correct parts but included a part I never seen when building up AR's. It is 3/16 inches long, 1/8 diameter and a third of its lenth is turned down to 1/16 inch. Any idea what it is? Thank You

Link Posted: 9/26/2004 7:05:25 AM EDT
[#1]
Is it threaded on part? If so it is the set screw that holds the two sight wheel pieces in the correct alignment.www.ar15.com/content/manuals/manual_bushmaster.pdf

If you look at the parts drawing on htis manual pg 30 pdf  or page 54 book page numbers it show the sight and the index screw.

Link Posted: 9/26/2004 9:03:26 AM EDT
[#2]
Thanks for the reply. It was not the threaded part. The other kit did not have this part.

Link Posted: 9/26/2004 11:04:52 PM EDT
[#3]
That sounds like the detent used for securing the windage drum on an A-1 rear sight.  It probably got mixed in with some A-2 sight parts at the factory.

Archived [ARCHIVED THREAD] - Extra part w/rear sight kit? What is it for?
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