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Link Posted: 9/24/2005 3:02:15 AM EDT
[Last Edit: Ekie] [#1]
XM16E1 serial numbers run 40,000-199,999 and 500,000-6xx,xxx.  The X in XM16E1 is not a serial number prefix it was DOD assigned nomenclature and represents experimental.  The XM16E1 was the standard US infantry rifle for use in Vietnam, for a time.  Once offically adopted as the US Standard A rifle it was renamed the M16A1.
Link Posted: 12/18/2005 9:37:00 PM EDT
[#2]
I was just considering buying one as you say in the 8000xxx range that has the 3rd burst but along with it is a ten minute quick change so FA can be shot...the FA may have been installed in yours and then the seller kept the 3rd burst components//... it is a Colt and the seller doesn't find anything that would suggest aftermarket change-over components...
Link Posted: 1/12/2006 7:01:42 AM EDT
[Last Edit: xray] [#3]
Colt M16A2, serial #8,003,XXX was  pre-86

Roll marked A2 with Burst, but is A1 all around, both lower and original carbine upper
Link Posted: 2/21/2006 7:45:42 PM EDT
[#4]
Colt M16A1    95274xx

Was new unfired untill a few weeks ago

Lower is roll marked M16A1 with all A2 features
Upper is a 20" A2
Link Posted: 2/21/2006 10:09:00 PM EDT
[#5]
.
Link Posted: 2/23/2006 4:41:13 PM EDT
[#6]
Factory Colt M16A2 8,113,xxx  Pre-86 transferrable 20" Hbar   CMB upper casting   Auto stamped not burst
Link Posted: 3/1/2006 8:40:03 AM EDT
[#7]
Colt AR-15 cal. .223 serial 01549x  

rollmarked 5 on rt side magwell

hole present for buffer tube retaining pin

Form 2 4/9/65  

1st form 3 not until 6/6/72

possible tool room gun, R&D prototype or 607
Link Posted: 3/6/2006 5:11:16 PM EDT
[Last Edit: ArJunaBug] [#8]
Hi Tony,
I just purchased an factory new M4 that is marked M16A1. It is in the serial number range 9XXXXXX. I see you have no data beside this serial number range, why is that? What I know about mine is that Colt took an old transferable M16 and "repaired" it into a brand spankin new transferable late model M4, full auto, beefed up receiver, flat top, 14.5" barrel. I added a heavy barrel to it as well as a 4-way selector to add burst mode. Is there any more you can tell me, or I can tell you?

ArJuna

Link Posted: 3/6/2006 6:09:52 PM EDT
[Last Edit: tony_k] [#9]
Link Posted: 11/6/2006 1:08:34 PM EDT
[Last Edit: slurrybomber] [#10]
I have pre-86 #800303x, marked M16A2, auto, and black finish.
Link Posted: 11/20/2006 10:30:52 AM EDT
[Last Edit: Zack3g] [#11]
Here's mine. Marked M16A1, serial # 9547xxx








Not sure if the upper is what originally came on the gun, but I do know that it is an all colt upper. Anyone able to tell me anything about this gun? tony?
Link Posted: 11/20/2006 1:33:48 PM EDT
[#12]
Link Posted: 11/20/2006 1:42:15 PM EDT
[#13]

Originally Posted By Zack3g:
Not sure if the upper is what originally came on the gun, but I do know that it is an all colt upper. Anyone able to tell me anything about this gun? tony?


With tony_k providing a probable date of manufacture, then we just need to know details on the upper (specifically barrel)  to see if it is from the same time frame.
Link Posted: 12/20/2006 1:31:12 PM EDT
[#14]
I physically handled XM16E1s with the following serial numberas at Ft. Lewis this year,

109843
113197
118358
118788<­BR>124789
126742
634479

I also had my hands on a Model 02 serial number 028680.

I also saw some marked M16A1 MOD;

040616
042826

And a M16A1 serial number 045502.
Link Posted: 12/20/2006 1:55:38 PM EDT
[#15]

Originally Posted By TANGOCHASER:
I physically handled XM16E1s with the following serial numberas at Ft. Lewis this year,

109843
113197
118358
118788<­BR>124789
126742
634479

I also had my hands on a Model 02 serial number 028680.

I also saw some marked M16A1 MOD;

040616
042826

And a M16A1 serial number 045502.


Good stuff.  The 04XXXX rifles were originally Colt M16 Model 604's.  Converting older rifles to M16A1 is standard US Army practice, but these are unusual in that they are former Air Force rifles.
Link Posted: 12/29/2006 12:49:57 AM EDT
[#16]
Don't know if you have this or even want it, but here go's.
This is from a Colt manual and the gun was used as the demo gun in the manual.


Colt Manual No. CM101
M16A1
Operation and Maintenance Instructions
Revised January 1980
S/N 9,280,647

Standard issure 20" bbll  Full Auto

Link Posted: 12/31/2006 12:39:18 PM EDT
[#17]


A2 #8021XXX
Link Posted: 1/10/2007 3:25:42 PM EDT
[#18]
I recently got 2 RRs

An M16 A2 8002xxx , burst , with the original upper ,an A2 20 inch 1/7.

Also got an AR15 SP1 pre86 full auto TTI conversion, SP206xxx , A1 upper. However , this one has the large hole front takedown pin.

Tony,
 Is there anyone you trust to do a small hole conversion?
 
Link Posted: 1/10/2007 6:21:12 PM EDT
[#19]
Link Posted: 2/4/2007 1:39:55 AM EDT
[Last Edit: luckypunk] [#20]
Ink isn't dry, but...

Colt AR15 #406176, 1974 New In Box, orginal box, accessory packs, unopened, and wick still in the bbl.

i18.tinypic.com/2powtb9.jpg
i19.tinypic.com/2ef23w7.jpg
i19.tinypic.com/4bp4x0z.jpg
i5.tinypic.com/2vx4ocz.jpg

Shipping from OK, should be to impact by...fri?

Link Posted: 2/13/2007 6:55:52 PM EDT
[#21]
hey tony and ekie here's some more pics of mine, maybe they'll help you







if you need pictures of anything specific to help narrow down the history of this one, i'd be glad to help.
Link Posted: 2/14/2007 1:56:29 AM EDT
[#22]

Originally Posted By Zack3g:
hey tony and ekie here's some more pics of mine, maybe they'll help you


img.photobucket.com/albums/v632/zack3gpics/DSCF0645.jpg
img.photobucket.com/albums/v632/zack3gpics/DSCF0647.jpg
img.photobucket.com/albums/v632/zack3gpics/DSCF0643.jpg
img.photobucket.com/albums/v632/zack3gpics/DSCF0640.jpg

if you need pictures of anything specific to help narrow down the history of this one, i'd be glad to help.


Is it a 9,000,000 series?

Looks like a mixmaster to me, not that it would effect the value, in the 99 percent or so is tied up in the lower.

Handguards appear after market.

What is the forge code on the upper?

Is the bolt marked MP C or M P C?

What are the barrel markings?
Link Posted: 2/14/2007 9:44:17 AM EDT
[#23]
barrel is marked:

C MP CB


bolt looks like MPC


upper is marked C M near the rear sight
Link Posted: 2/14/2007 10:02:14 AM EDT
[#24]
Is the serial number in the 9 million range?
Link Posted: 2/14/2007 11:28:04 AM EDT
[#25]

Originally Posted By Ekie:
Is the serial number in the 9 million range?


yeah its 95474XX

(if you need the whole thing i'll IM it to ya)
Link Posted: 2/14/2007 2:41:18 PM EDT
[#26]
Link Posted: 2/14/2007 4:13:49 PM EDT
[#27]
What Tony said.

If you got the date that it was sold then we would determine if the components were available at that time.  For example, if the barrel has a "O" stamped on the breech, and the paper work shows that the firearms was sold by Colt in 1986 then we know it is not faoctory original in that the barrel dates from a later time.
Link Posted: 2/25/2007 11:21:59 PM EDT
[Last Edit: GREY15] [#28]


Link Posted: 6/24/2007 6:20:30 PM EDT
[#29]
014667 Marked AR-15 Property of US Government GX-5857

607 Config but not marked as such.





014xxx Marked AR-15 Property of US Gov't GX-5856

603 config

Both hanging on the wall at Rock Island Arsenal Museum
Link Posted: 8/17/2007 5:43:08 PM EDT
[#30]
So when would a M16  S/N #4272445 have been made?
It was an A1, but was converted to A2 configuration, complete with electropencil markings....
Link Posted: 8/18/2007 1:31:32 AM EDT
[#31]

Originally Posted By Bigred200e:
So when would a M16  S/N #4272445 have been made?
It was an A1, but was converted to A2 configuration, complete with electropencil markings....


Late 70 or early 71.
Link Posted: 8/26/2007 1:37:37 PM EDT
[#32]
Any idea waht a "A" stamped behind the last number of a serial number represents?  Rifle is a Colt M16A2 marked "auto."

Thanks gents.
Link Posted: 8/27/2007 9:16:49 PM EDT
[#33]

Originally Posted By SSeric02:
Any idea waht a "A" stamped behind the last number of a serial number represents?  Rifle is a Colt M16A2 marked "auto."

Thanks gents.


They may have mistakenly marked 2 with the same S/N and added the A to the 2nd one.
Link Posted: 10/22/2007 6:03:02 PM EDT
[#34]
Mine is M16A1 Ser. 91609XX.  Any idea when it was made and what configuration?  I'm guessing a 20 inch rifle.

Thanks

Ronnie
JR1572
Link Posted: 2/26/2008 4:45:16 PM EDT
[Last Edit: MarineSniper8541] [#35]
Does anyone know when Colt roll marks of...

M4/M16A2E
S/N# A00576xx or A00800xx

selector markings on both are safe, semi, auto

...were made and if so, would they be transferrable?
Link Posted: 3/7/2008 1:15:47 PM EDT
[#36]
I have a second M16A2, 8 million, 4 thousand range. Dark grey finish. Funny, serial number ends with a letter. Story goes Colt would stamp things out in assigned ranges and occasionally have overruns. Post 86, when they were rooting around their warehouse they found some dupes and added letters to the S/N and papered them with ATF (Colt had a very liberal deal in registering MGs).

Which explains why the letter is not snugged up as tight as the numbers in the S/N . And helps to explain why it is in such good shape.
Link Posted: 10/4/2008 2:53:17 PM EDT
[Last Edit: tgus] [#37]
I have M16A1 serial 9368496 form 2 dated 3/20/79 factory HBAR with M14 bipod.
Added pic it is the second one down.
Link Posted: 4/18/2009 11:46:05 AM EDT
[#38]
My work  (LEO) gun has a serial number 13113XX.

Can anyone tell me the history on it?  The roll mark says Colt AR15 and below it says M16A1   Cal  5.56 MM

I cannot find anything on the serial number lists.
Link Posted: 4/18/2009 12:06:01 PM EDT
[Last Edit: tony_k] [#39]
Link Posted: 4/18/2009 12:19:23 PM EDT
[#40]
Originally Posted By tony_k:
Originally Posted By Justice23:
My work  (LEO) gun has a serial number 13113XX.

Can anyone tell me the history on it?  The roll mark says Colt AR15 and below it says M16A1   Cal  5.56 MM

I cannot find anything on the serial number lists.

The 1-million indicates it is a U.S. military contract gun, a continuation of the series that began with 01, and before Colt started reserving particular serial-number ranges for specific end-user classes (like the LE agency 9-mil SN series that this thread principally addresses).

Given the low number and the dual rollmark (both AR15 and M16A1) I would say it's a fairly early gun, produced shortly after the XM16E1 was accepted by USgovt. and officially type classified as the "US Rifle, 5.56mm, M16A1." That would put production in the late 1960's –– maybe '68 or '69. I'm surprised that yours doesn't have U.S. Property markings –– some got through without them, though it may also have been one of the early guns first diverted to LE.

But I'm not an expert on those –– mostly I study the 9-million SN series.


MY bad....it does have the Property of U.S. Govt marking.  I forgot to put that in.

Thank you.

Link Posted: 5/14/2009 11:03:15 AM EDT
[#41]
Just received my first transfer. I purchased a M16A1 SN 9310894. Is there any way to contact the ATF to see what the transfer history is on this or where it originated from?
Link Posted: 5/20/2009 2:46:01 PM EDT
[#42]
Link Posted: 5/20/2009 6:32:32 PM EDT
[#43]
Thanks for the help. I thing that the history of these things is interesting. I know that some department had this several transfers before because there is some other serial number that has been stamped into the mag well. Here are some answers to your questions: Stock - old style 2 position folding; upper - 11.5" A1 w/ older tear drop forward assist which should be consistent with the date it was manufactured; M16A1 stamped into receiver; Selector stamping - safe/semi/full. The gun is registered with the 11.5" upper. The dealer that I purchased it from thought it was all original, but could not confirm. If it is all original, it might even be a commando. I am hopeful that the history search will provide more information on the original barrel length if it changed through out its lifetime. I am also hopeful that the information will disclose the original date of birth. Let me know if you have any more ?'s.

I will see if I can post a picture tomorrow night of the gun.
Link Posted: 5/20/2009 9:24:28 PM EDT
[#44]
Link Posted: 6/19/2009 8:27:43 AM EDT
[Last Edit: Combat_Diver] [#45]
I remember that the M4A1s that we recieved in 1995 all had W prefix as stated but the next numbers were 303xxx or 304xxx (If I remember correctly they were six digits)  I try and check some of my team files this evening.

CD

ETA:  Just check one of my teams serial numbered item list and the lowest to highest were
W301510-W304997
Link Posted: 6/23/2009 4:20:24 PM EDT
[#46]
Tony,

I mailed off the FOIA letter today for the M16....wonder how long it will take to get a response from them?
Link Posted: 6/23/2009 6:12:03 PM EDT
[#47]
Link Posted: 6/24/2009 11:50:14 AM EDT
[#48]
It seems like everything through the Govt. is like an NFA transfer. I am glad that I am a patient guy...
Link Posted: 7/31/2009 8:13:12 PM EDT
[#49]

Some SN info if you're interested:    I sold SN 9243177 in Dec. of '07, just before leaving for Asscrackistan. I bought it in '88 (for the princely sum of 1,800.00). It came from a N.J.pd. It was a plain jane a1 with a 20" bbl. The last time I saw it, it had a 14.5" crotchmaster bbl., Colt m-4 flatop upper, YHM rail and a c-more tactical sight. The internals were Np3.

Had a brief dalience with serial #609. I remember it being marked as an Armalite AR15. It had the open prong suppressor and the early selector switch, chrome bolt, etc. It must have been a 1/14 twist bbl. as it could not reliably hit a standard Q target in sub 0 temps at 100M. When it did hit, it punched keyholes. This gun was a police dept gun that they had since '66.

Just got SN 9586145- Thought it was a refinish because it looks too good. It's marked m16a1 and has the usual a1 features but it has a an a2 type grip. The seller says he bought it new from Colt and only put 200 rnds through it. I bore scoped it and I believe him, a little copper in the bore but no burning or cracking.



Link Posted: 8/19/2009 1:05:22 PM EDT
[#50]
Tony,

Got a letter from the ATF that says my FOIA request will be mailed to me within 20 days from Aug 5th 09. I will give you an update when I receive it.
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