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7/27/2012 10:14:50 PM EDT
I've just purchased a Colt upper. It's a square forging with the countersunk front lug.
I want to build, as correctly as possible, a '66 rifle with the three prong flash suppressor.  Which lower receiver would be the most correct for an Army 603 (XM16E1)?  Would it be the full fence?

Thanks again.

Does anyone have a good picture of the correct Colt markings on the left side of a XM16E1?
7/27/2012 10:41:20 PM EDT
[#1]
Quoted:
I've just purchased a Colt upper. It's a square forging with the countersunk front lug.
I want to build, as correctly as possible, a '66 rifle with the three prong flash suppressor.  Which lower receiver would be the most correct for an Army 603 (XM16E1)?  Would it be the full fence?

Thanks again.


you want the partial fence lower.  if you're using an original barrel, what markings does it have?
7/27/2012 10:41:40 PM EDT
[#2]
If your building a XM you will want a partial fence lower.
7/28/2012 10:52:32 AM EDT
[#3]
Nodak Spud has the partial fence lowers in stock now
8/15/2012 5:09:52 PM EDT
[#4]
All, thanks for your responses and help.  I should have known it was the partial fence, but I suffered from brain cramps that day.

Does anyone have a good picture of the correct Colt markings on the left side of a XM16E1?

I received the upper and it does meet all the particulars of a '66 XM16E1.  I'm very pleased with it.  It has the correct handguards, gas tube, port cover, and most importantly, barrel and front sight (all with the correct codes, stampings, and features).  It came with an A1 birdcage flash suppressor.  The seller also sent me a three prong flash suppessor, however it was the early duckbill type.  I'm looking for the correct "improved" three pronger (hint, hint).

Thanks again for all your help.
8/15/2012 5:30:38 PM EDT
[#5]
I'll swap a NOS three prong for the duckbill if you want.
8/15/2012 5:59:25 PM EDT
[#6]
Here's is the correct marking:

8/15/2012 6:12:04 PM EDT
[#7]
some of my original demils:





8/15/2012 6:19:32 PM EDT
[#8]
Wow!  That 184xxx is about as early as I've seen and it still has later bolt catch kinda or so it appears to me in pic.  Definately a keeper.  Any of them come with dimple pins?
8/15/2012 6:24:32 PM EDT
[#9]
Quoted:
Wow!  That 184xxx is about as early as I've seen and it still has later bolt catch kinda or so it appears to me in pic.  Definately a keeper.  Any of them come with dimple pins?


sold those guys back in 09.  it does appear to have the later bolt catch.
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