help identifying parts

[steevo]

i have had this upper sitting in the safe for a while, not sure if its worth keeping or beter off buying something else. searched and found a few things i was able to id and know what make it is. just not sure who made these and how old and if its worth keeping, thanks in advance...
this is the underneath of the upper reciever, i read somewhere its an m16 cut? decent and worth keeping?
http://i267.photobucket.com/albums/ii302/sludwinjr/photo.jpg
the brrel i figured out is a colt, but not sure how old or quality wise from back then
http://i267.photobucket.com/albums/ii302/sludwinjr/colt4-1.jpg
here is the front sight, not sure if it even matters on this
http://i267.photobucket.com/albums/ii302/sludwinjr/colt3.jpg
and here is the only mark on the upper reciever itself......i found where it said cardinal forge, but was told its a colt?
http://i267.photobucket.com/albums/ii302/sludwinjr/colt2.jpg
im about to take a few carbine courses and want to make sure this is going to be good or am i better bying a new upper, thanks
steevo

[scottryan]

The receiver is not Colt.

Is the barrel factory threaded?

[steevo]

it has a basic a2 flashider on it, i was told it was original threaded barrel from colt factory. i bought a preban lower and this is the upper that was on it. was told the upper is a complete colt upper, but apparently not.

[scottryan]

The barrel is from a Colt 6530.

I would replace the receiver with a Colt flattop receiver.

[Tweak]

i read somewhere its an m16 cut?

the relief for the top of the auto sear is the "M16" cut. It's the half moon shaped cut just forward of the takedown pin lug.



i found where it said cardinal forge, but was told its a colt?

Cardinal makes raw forgings, they are not a manufactuer of uppers. Other companies buy the forgings to make uppers from. Colt parts will usually have a C on them somewhere or the other Colt proof marks.


ETA: Can you post a picture of the other side of the front sight base?

[steevo]

i will try to get some pics up tomorrow, will this upper be decent for a few carbine classes or should i pick up a daniel defense

[Col_Crocs]

Colt is more than gtg. What BCG did it come with? How many rounds thru it when and since you got it?

[steevo]

factory colt bcg, i have read the newer colt stuff is decent, but wasnt sure about the older stuff like i have here, maybe 500 rouns total through it, thanks

[Tweak]

No reason it should't work with a good BCG in it, just curious if the FSB is F marked to go with the flat top upper unless you're going to run optics on it.

[scottryan]

No reason it should't work with a good BCG in it, just curious if the FSB is F marked to go with the flat top upper unless you're going to run optics on it.


The FSB is not f marked and it doesn't matter on that barrel because it should have came with a taller front sight post from the factory.

[Tweak]

I thought the 6530 was a A2 upper?

[scottryan]

I thought the 6530 was a A2 upper?



It does have an A2 upper.

It still would have a taller front sight post.

[Tweak]

I always thought the Colt carbine barrels used a FSP that was the same height just thinner and the thinner part got dropped from the issue weapon out of concerns for inventory control?