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AR15.COM
AR Sponsor
12/31/2006 11:51:03 AM EDT
What is the diameter of the roll pin used in the A1 rear sight wheel?

Thanks!
12/31/2006 8:27:33 PM EDT
[#1]
That's an IBF (itty bitty focker)

1/16" diameter and 1/4" long.
Same pin as a charging handle or forward assist pawl.

Here's an excellent source of AR-15 pin size specs:

biggerhammer.net
1/1/2007 11:33:53 AM EDT
[#2]
Thank you!
AR Sponsor