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2/27/2010 2:36:22 PM EDT
What would i need to change uppers on a colt ar15,new to ars,,thank you
2/27/2010 2:39:09 PM EDT
[#1]
EDIT: This is if you mean changing upper receivers:

upper receiver block to fit in vise, Barrel nut wrench, hammer, punch set, torque wrench.
2/27/2010 2:40:04 PM EDT
[#2]
Depends on what model Colt and when it was made. The ones made in recent years have the same front pivot pin as all others
2/27/2010 2:40:26 PM EDT
[#3]
Quoted:
What would i need to change uppers on a colt ar15,new to ars,,thank you


Push out takedown and pivot pins, remove Colt upper, place new upper on lower, push in pivot and takedown pins, go shooting.

ETA: do you mean the entire upper group or just the upper receiver?  I also forgot that some older Colts have larger pivot pins so it may not be as simple as I stated above.
2/27/2010 2:48:40 PM EDT
[#4]
my colt has the screws in the front pivot pins,what type pins should i get
2/28/2010 10:02:32 AM EDT
[#5]
I just acquired a Colt MT6700 and it too has the screw in the front. I believe in order to use a different upper you need to send it to Adco who can bring it up to date with a push pin, but the cost is $80 plus shipping. I haven't taken mine apart so I don't know if you can use the front screw with another receiver but IIRC you can't. I am sure I will be corrected if I am wrong. I don't plan on changing the rifle at all so it wasn't a issue for me. Enjoy your rifle.

NCH
2/28/2010 10:25:28 AM EDT
[#6]
The 6700 may have the standard size front pivot pin hole, so I think you can use the screws. If it has the larger hole all you need is a simple adapter pin.
http://blackrifleworks.com/colt-ar15-universal-front-conversion-pin-p-164.html
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