Confirm Action

Are you sure you wish to do this?

Confirm Cancel
User Panel

Site Notices
Posted: 5/21/2002 11:41:24 AM EDT
    I have an M16A1 upper with the tear drop forward assist and no brass defelector. It came off of a Colt M16A1. Who made these uppers because I do not see any marks on it. I also have an SP1 upper that came off my Colt SP1 lower. I do not see any marks on this upper either. Does anyone know who made it? Thanks.
Link Posted: 5/21/2002 12:14:43 PM EDT
Have you tried taking off the handguards to see if there any barrel markings beneath them?
Link Posted: 5/21/2002 12:50:47 PM EDT
Yes, the upper that came on the SP1 has
"C MP C" stamped on the bottom of the barrel. The M16A1 upper, has had the barrel changed to a Wilson barrel. Neither upper has any stamping on them that I can find.
    Any help would be appreciated.
Link Posted: 5/21/2002 12:55:31 PM EDT
Sorry 'bout that.  You were saying "upper" and I was thinking "barrel".  Lemme see what I can find when I get home from work.
Link Posted: 5/21/2002 1:17:04 PM EDT
Link Posted: 5/21/2002 1:49:16 PM EDT

great find !!

i just finished checking my 1975ad vintage SP-1 & shure as shootin, there, visible under my 5X magnifying glass glareing back at me is a "C" inside a square & next to it is a tringle, smaller, so out comes my 20X coin & stamp inspection magnifier & find inside the triangle, "VP", as in Vincent Price...! attached as in a brand inside the triangle, i am certain the "C" means Colt, but the other is the individual armorer who proofed it, i thynk.., not certain, but that was the procedure in days gone by........

Link Posted: 5/22/2002 6:07:00 AM EDT
Hey Kevin, I found the exact proof marks on mine as cactusjack. However, I only found it on the 1972 SP1 upper. I still do not see anything on the M16A1 upper. Any other suggestions?
Link Posted: 5/22/2002 6:38:32 AM EDT
Link Posted: 5/22/2002 1:42:44 PM EDT
Hey Kevin it is a small hole upper, I had to use the adapter to put in on the SP1 lower. I have heard of people having them machined into a large hole, do you recommend this?
Link Posted: 5/22/2002 3:47:34 PM EDT
Link Posted: 5/23/2002 6:12:59 AM EDT
Kevin I have considered selling it or trading it for a Colt A2 16" upper in preban configuration, but I do not know what my upper is worth. Any suggestions.
Link Posted: 5/23/2002 7:53:32 AM EDT

Look for any faint proof marks in front of the ejection port -

In particular, you'll be looking for a 'C' in a box, this would verify it as a Colt.  You may also see a # '1' or a triangle shaped proof mark.

 Kevin, thanks for the tip.

 I have a CAR 15 A1 14" upper, no forward assist, no brass deflector, and I have no idea who manufactured this upper.  But, with your tip, I find out that it also has "c" inclosed in a box.
Also, under the A1 rear sight , there is a "C" and "M". What is exactly these 2 letters stand for?  I assume "C" stands for Colt?.. Thanks
Link Posted: 5/23/2002 9:25:46 AM EDT
Link Posted: 5/23/2002 10:20:00 AM EDT
Hey Kevin, it is a preban barrel with A2 handgaurds. It is in excellent condition, It appears it has been shot very little.
    What are the going prices for a Colt A2 preban upper? Prefer large pin if that is possible.
Link Posted: 5/23/2002 10:49:38 AM EDT
Link Posted: 5/23/2002 11:05:16 AM EDT

 Kevin, thanks bro.
Link Posted: 5/23/2002 12:46:57 PM EDT
What makes mine in the $340.00 range, the fact that it is a wilson barrel or the fact that it is an M16A1? Also, if I part it out, How much should I ask for just the upper, no barrel etc...?
Link Posted: 5/23/2002 1:00:32 PM EDT
Link Posted: 5/23/2002 1:58:33 PM EDT
Hey Kevin, I appreciate all your help. One clarification though. My barrel is a 16" barrel. It looks like a HBar barrel under the handgaurads, but then it tapers down to a lightweight barrel.
   I agree with you, I think I will find me a large hole A2 grey upper and put a busmaster barrel on it.
Link Posted: 5/23/2002 2:33:29 PM EDT
i just checked my other Colt, near the rear sight base is "C" 7 just a bit lower & left there is an "M", BUT !! it still has the "C" in the square, & a triangle, but it is stamped so lightly it is hard to determine what letter or number is in the triangle.........
Link Posted: 5/23/2002 2:37:12 PM EDT
Close Join Our Mail List to Stay Up To Date! Win a FREE Membership!

Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!

You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.

By signing up you agree to our User Agreement. *Must have a registered ARFCOM account to win.
Top Top