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9/22/2017 12:11:25 AM
Posted: 8/19/2005 5:58:16 AM EDT
?
Link Posted: 8/19/2005 6:00:34 AM EDT
Yep, it has an ID of 0.625". It goes on the A1 pencil profile barrels.
Link Posted: 8/19/2005 6:05:54 AM EDT

Isn't the front site post round as well?
Link Posted: 8/19/2005 6:07:11 AM EDT
thank you, so it is almost exactly the same except the size. is it a different design at all?
Link Posted: 8/19/2005 6:48:24 AM EDT

Originally Posted By donovan007007:
thank you, so it is almost exactly the same except the size. is it a different design at all?



It's pretty much the same, except for the ID. The front sight post should be round and have five adjust detents vs. the four detents on the A2 front sight post.
Link Posted: 8/19/2005 7:35:43 AM EDT
FSB's, and front sight posts detailed here:

ar15.com/forums/topic.html?b=3&f=118&t=241681
Link Posted: 8/19/2005 12:29:54 PM EDT

Originally Posted By mongo001:

Originally Posted By donovan007007:
thank you, so it is almost exactly the same except the size. is it a different design at all?



It's pretty much the same, except for the ID. The front sight post should be round and have five adjust detents vs. the four detents on the A2 front sight post.



Unless, of course, someone has replaced the original round front sight post, with an A2 square post; as I have done w/my own early types. They are interchangable
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