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Posted: 6/27/2015 2:11:52 PM EDT
is this upper a colt model 715/c7 upper?  upper looks to be factory colt w/ the proof marks and barrel markings.  barrel is dated 97 and bolt is MPUC marked.  was colt making the 715/c7 in 97?






archived thread:
https://www.ar15.com/archive/topic.html?b=3&f=123&t=503929

Link Posted: 6/27/2015 2:57:45 PM EDT
I parted out a sp2 upper same specs just large hole markings were similar. I like the c7 combo.
Link Posted: 6/27/2015 4:10:15 PM EDT
Lionel - I doubt that combo was still being made in '97, but you never know, governmental contracts being what they are. They were transitioning to the A2 receiver in '85-86 when I was in ROTC - the C7 uppers were substituted because they couldn't keep up with the demand for M16A2s... thus the M16A1E1, which was pretty much a stop gap measure. Regardless, nice upper - it'd make a nice 715 IMO.

ETA: The early M16A1E1s had A1 spec pencil barrels in 1:7 - but that didn't last long at all. I believe most of the barrels from that contract became export items, mostly Israel. With I had one. Pretty rare birds.
Link Posted: 6/27/2015 5:04:11 PM EDT
The anodizing on that upper looks more charcoal black than gray.  Which seems to be consistent with production date of that barrel.
Link Posted: 6/27/2015 5:46:19 PM EDT
It has a sear relief and is small hole with a m16 carrier.  Barrel nut didn't have any wrench marks on it either.

Guy I got it from says they came off department lowers with burst capabilities so maybe a le offering?
Link Posted: 6/27/2015 11:18:29 PM EDT
Ive got the same upper. Bought it from a local Police Supply two weeks ago. They stated they were department trades. Mine came with a Surefire 510 forend. Barrel is dated 98. I was able to hand select the nicest one they had . Already built it into a C7 type rifle. Ill see if I can get around to posting pics.
Link Posted: 7/3/2015 7:38:23 PM EDT
I asked A2 expert Augee to take a look at it and he thinks it's an export model or something to fill a LE order.  something he noticed that i completely missed is that there isn't a M in the barrel markings.

C M P 5.56 1/7 NATO

anyone seen a missing M before?
Link Posted: 7/3/2015 9:10:49 PM EDT
I noticed the lack of the "M" when you initially posted this. In any event, I'd be making a basic "C7" out of it.
Link Posted: 7/3/2015 10:40:45 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By boywonder777:
I asked A2 expert Augee to take a look at it and he thinks it's an export model or something to fill a LE order.  something he noticed that i completely missed is that there isn't a M in the barrel markings.

C M P 5.56 1/7 NATO

anyone seen a missing M before?
View Quote


Well obviously, it wasn't built for the Mounties...
Link Posted: 7/4/2015 8:40:50 AM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Morg308:

Well obviously, it wasn't built for the Mounties...
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GROAN!

I am a fan of bad puns!
Link Posted: 7/4/2015 10:36:56 AM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Cal30M1:



GROAN!

I am a fan of bad puns!
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Cal30M1:
Originally Posted By Morg308:

Well obviously, it wasn't built for the Mounties...



GROAN!

I am a fan of bad puns!


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