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Posted: 3/23/2017 12:55:23 PM EDT
[#1]
IIRC, the M4 basically introduced the whole idea of the castle nut, vs the older style spanner-wrench telestock nut.
So, a transitional M4 build might still have the old style, but anything intended to represent being an M4 should have the castle nut. |
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Posted: 3/23/2017 1:08:09 PM EDT
[#2]
Quote HistoryQuoted:
IIRC, the M4 basically introduced the whole idea of the castle nut, vs the older style spanner-wrench telestock nut. So, a transitional M4 build might still have the old style, but anything intended to represent being an M4 should have the castle nut. |
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Posted: 3/23/2017 1:39:17 PM EDT
[#3]
Early m4 would have the old style nut and the old CAR stock.
I am on the phone and can't put the link but there is a thread on page 2 that has a Colt video that shows some very early a2 uppered m4 barreled rifles. |
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Posted: 3/24/2017 11:12:21 AM EDT
[#4]
Quote HistoryQuoted:
Early m4 would have the old style nut and the old CAR stock. I am on the phone and can't put the link but there is a thread on page 2 that has a Colt video that shows some very early a2 uppered m4 barreled rifles. |
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Posted: 3/26/2017 7:34:16 PM EDT
[#5]
Quote HistoryQuoted:
I think that would be true of the 727 and commercial export versions, the XM4 was a different development project and would have the current style castle nut along with the four position stock. |
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Posted: 3/29/2017 9:55:19 AM EDT
[#6]
I can tell that a 727 M16A2 export Carbine with M4 style barrel came with a two position receiver extension, "N1" marked stock and older nut ...
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