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Posted: 6/1/2019 3:20:00 PM EDT
So I grabbed this at the local gun show. I was told it was a preban Colt upper, Colt bolt/ bolt carrier but the barrel has me stumped. The barrel looks like a pencil barrel but once i got the handguards off the barrel was like a huge bull barrel.
Thoughts? 
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Posted: 6/1/2019 3:49:33 PM EDT
[#1]
Not a Colt barrel. Note the roll pins in the FSB.
Might be an Oly barrel. |
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Posted: 6/1/2019 3:57:30 PM EDT
[#2]
yeah I would say it's a Frankenupper
colt receiver, with most likely an Oly barrel screwed to it |
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Posted: 6/1/2019 4:01:11 PM EDT
[#3]
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Posted: 6/1/2019 4:07:04 PM EDT
[#4]
Quote HistoryQuoted:
yeah I would say it's a Frankenupper colt receiver, with most likely an Oly barrel screwed to it |
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Posted: 6/1/2019 4:15:58 PM EDT
[#5]
Olympic Arms, they used to be a big player in the AR world back in the ban days.
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Posted: 6/1/2019 4:35:08 PM EDT
[#6]
Quote HistoryQuoted:
Olympic Arms, they used to be a big player in the AR world back in the ban days. |
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Posted: 6/1/2019 4:43:26 PM EDT
[#7]
Quote HistoryQuoted:
Duh I should have known that's what it was I've heard of them. So the question is if that's an OLY barrel what is the quality? |
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Posted: 6/1/2019 4:43:58 PM EDT
[#8]
XM-177 barrel is sweet. Granted it's an 11" barrel with a big FH on it, but OLY quality is good.
I gave an upper with the same bbl to my oldest daughter 20 years ago. She refuses to give it back or trade me for a more "modern" one. Shoot it and enjoy The best configuration is : 
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Posted: 6/1/2019 5:24:18 PM EDT
[#9]
Another big AR dealer at the show said it's a Colt contract upper and that the giant flash hider is just silver soldered on as that was something that was done back in the day instead of pinned and weld.
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Posted: 6/1/2019 5:44:01 PM EDT
[#10]
The bit about silver solder being used in the past is true.
The statement that it is a factory Colt upper is a lie. |
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Posted: 6/1/2019 6:08:40 PM EDT
[#11]
Quote HistoryQuoted:
The bit about silver solder being used in the past is true. The statement that it is a factory Colt upper is a lie. |
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Posted: 6/1/2019 7:47:54 PM EDT
[#12]
That is not an Oly barrel,
Looks like the standard fare that Nesard sold back in the 80's and 90's. Dead giveaway is the roll pins in the FSB, Olympic never did this. Wpns Man |
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Posted: 6/1/2019 8:05:29 PM EDT
[#13]
Was Nesard using decent barrels?
I've got $400 into this upper. Hoping I made a decent purchase. |
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Posted: 6/1/2019 8:36:49 PM EDT
[#14]
The old Bushmaster in Windham ME also sold this upper complete. 11.5 inch barrel with a 5.5 inch flash suppressor. I have one on an old (1993) Bushmaster lower.
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Posted: 6/1/2019 9:04:30 PM EDT
[#15]
Quote HistoryQuoted:
The old Bushmaster in Windham ME also sold this upper complete. 11.5 inch barrel with a 5.5 inch flash suppressor. I have one on an old (1993) Bushmaster lower. That's why I grabbed this Colt upper, wanted to make another one. |
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Posted: 6/1/2019 9:25:39 PM EDT
[#16]
Quote HistoryQuoted:
The old Bushmaster in Windham ME also sold this upper complete. 11.5 inch barrel with a 5.5 inch flash suppressor. I have one on an old (1993) Bushmaster lower. |
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Posted: 6/1/2019 9:35:49 PM EDT
[#17]
Quote HistoryQuoted:
Another big AR dealer at the show said it's a Colt contract upper and that the giant flash hider is just silver soldered on as that was something that was done back in the day instead of pinned and weld. If a factory Colt upper, there would be proof marks on the upper receiver right side above the front of the ejection port. |
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Posted: 6/1/2019 11:01:37 PM EDT
[#18]
Quote HistoryQuoted:
That is not an Oly barrel, Looks like the standard fare that Nesard sold back in the 80's and 90's. Dead giveaway is the roll pins in the FSB, Olympic never did this. Wpns Man https://www.ar15.com/forums/ar-15/Did_anyone_make_a_cast_FSB_besides_the_ones_for_the_military_601s_/123-600921/?fvx=1 
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Posted: 6/2/2019 5:14:10 AM EDT
[#19]
Quote HistoryQuoted:
If a Colt HBAR Barrel, there would be C MP C on top of the barrel between FSB and the FH. If a factory Colt upper, there would be proof marks on the upper receiver right side above the front of the ejection port. |
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Posted: 6/2/2019 10:07:37 AM EDT
[#20]
Back when Oly and Nesard were the only game in town I handled a lot of this stuff.
I had two different friends who were dealers and helped them sell, build and repair stuff. The Cast FSB was not an Oly exclusive. Nesard would use whatever was available, usually someone else's rejects. Unless it is an Oly marked barrel, I still go with it being Nesard. I use to repair a bunch of rifles built with their parts kits because people wanted to go cheap. YMMV, Wpns Man |
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Posted: 6/2/2019 12:12:54 PM EDT
[#21]
Does that upper receiver have an extra hole drilled in the channel of the carry handle?
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Posted: 6/2/2019 12:57:23 PM EDT
[#22]
Since you've already bought it, I'd say you did ok. If the bore is chrome lined you did better. If you take it out and it'll group under 2.5 moa (@100) with the irons (benched of course), you ROCK.
Measure the twist rate. You might be able to rule out some manufacturers, of the bbl, anyway. |
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Posted: 6/2/2019 5:09:08 PM EDT
[#23]
Quote HistoryQuoted:
Does that upper receiver have an extra hole drilled in the channel of the carry handle? |
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Posted: 6/2/2019 6:03:52 PM EDT
[#24]
Quote HistoryQuoted:
Yea some old timer did a bubba job and drilled a second hole, meh it was a way for me to talk him down a bit on the price. Doesn't bother me. Quote HistoryQuoted:
Quoted:
Does that upper receiver have an extra hole drilled in the channel of the carry handle? |
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Posted: 6/2/2019 8:18:20 PM EDT
[#25]
Quote HistoryQuoted: OP's has the raised forged C + H under the rear sight. Sendra became Nesard became Model 1 Sales (until that Vader incident... ;) ) |
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Posted: 6/3/2019 11:49:21 AM EDT
[#26]
The barrel is Nasard, the upper receiver is not proofed, the flash hider looks to be silver soldered (AKA Nasard) the handguards are not Colt. The BCG is a Colt SP1.
stoner63a What incident? Sendra became Nesard became Model 1 Sales (until that Vader incident... ;) ) |
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Posted: 6/3/2019 3:54:03 PM EDT
[#27]
Quote HistoryQuoted:
The barrel is Nasard, the upper receiver is not proofed, the flash hider looks to be silver soldered (AKA Nasard) the handguards are not Colt. The BCG is a Colt SP1. stoner63a What incident? Sendra became Nesard became Model 1 Sales (until that Vader incident... ;) ) |
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Posted: 6/3/2019 7:45:36 PM EDT
[#28]
Quoted:
The barrel is Nasard, the upper receiver is not proofed, the flash hider looks to be silver soldered (AKA Nasard) the handguards are not Colt. The BCG is a Colt SP1. stoner63a What incident? Sendra became Nesard became Model 1 Sales (until that Vader incident... ;) ) |
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