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AR15.COM
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7/23/2006 1:40:29 PM EDT
I received an answer to this but lost my notes. Please bear with me.

I want to install a Bushmaster .22 Carbon upper on my preban Colt lower with the large front pivot pin hole.  I was told there was a particular make adapter pin I should order.  Please reply again.  Thank you, Bill  
7/23/2006 2:15:45 PM EDT
[#1]
Yep, Bushmaster has one. Part number NES-06. Around $6.00. It'll mate a small hole lower to a large hole upper.
7/24/2006 4:27:13 PM EDT
[#2]
Thanks for the tip.  I also recall getting a suggestion on getting it from another company, but can't recall the name. Thats why I had to repost.  Bill    
7/24/2006 4:38:59 PM EDT
[#3]
Could have been Brownell's. Or DPMS. Or just about anybody who carries AR parts.
7/24/2006 5:28:31 PM EDT
[#4]

Quoted:

I want to install a Bushmaster .22 Carbon upper on my preban Colt lower with the large front pivot pin hole.


CDNN sells a good conversion pivot pin for small hole uppers and large hole lowers which stays in place compared to other brands.


CDNN conversion pin website link
7/25/2006 5:13:03 PM EDT
[#5]
Thanks, I appreciate the information.  Looks like the one from CDNN should be ordered/  Bill
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