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10/20/2017 1:01:18 AM
9/22/2017 12:11:25 AM
Posted: 8/9/2005 7:48:43 PM EDT
Ok, hope this is not a stupid question. Are these two different animals? Duckbill earlier? If so when was the change?
Thanks,
John
Link Posted: 8/10/2005 12:53:39 AM EDT
Yes, they are different.

The "duckbill" was used on the Colt 601.

The "3-prong" is a strengthened version of the duckbill, which apparently wasn't very durable. The prongs have a triangular cross-section instead of being straight. That's the best way I can describe it.

Take a look at Ekie's M16 variation thread, he has put a lot of time and effort into it. It should answer your question and then some.

www.ar15.com/forums/topic.html?b=3&f=118&t=241681
Link Posted: 8/10/2005 5:23:58 PM EDT
Thank you Sir!
Link Posted: 8/10/2005 5:29:41 PM EDT
I guess that's why my USGI 3-prong wrenches needed some mods - probably made for the duck bill FH.
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