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AR15.COM
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3/18/2004 7:43:52 PM EDT
Just browsing around at colt lowers thinking of grabbing up one now and waiting for the ban to die out. Is it all the colts or certain ones I need to look out for with the different sized pins?

3/19/2004 4:00:32 AM EDT
[#1]
Here's a good reference site for Colt AR15/M16 matters: [url]http://www.biggerhammer.net/ar15/[/url]

Under the upper section is PIN info.

Mike
3/19/2004 12:37:28 PM EDT
[#2]
The odd pin sizes on the Colts are the front pivot pin and the trigger & hammer pins.  

My Colt lower has standard size pivot pin, but a double-ended screw instead of the push-pin and no hole for installing the detent for a regular pin.  I've heard reports that newer ones at least have the hole drilled, and might even come with a regular pin now.  Older Colts have a large pivot pin, but you can get adapters to put on regular size uppers.

I think mine had the bigger trigger pins, but I haven't measured to be sure.  AFAIK they're still using the big pins on new lowers.  Not all of the match triggers are available for the bigger pins, but most are so I wouldn't worry too much about it.
3/19/2004 2:55:36 PM EDT
[#3]
thanks for the info.

I'll bookmark that site
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