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Archived [ARCHIVED THREAD] - WTK: Front pivot pin: Large or Small
Posted: 8/29/2003 12:21:11 PM EDT
I have a chance to buy a green label colt lower. It has a large front pin.  The question is, if I want to buy a new 7.5in upper for it (NFA)  will the upper work, or will I need a small pin converter?  In other words, are the newer uppers small pin, or do they come in both small and large pin?  

Link Posted: 8/29/2003 3:42:25 PM EDT
[#1]
To my knowledge, all current uppers are small pin, so you'll need an adapter.  The best one out there is sold by CDNN [url]www.cdnninvestments.com[/url]

Link Posted: 8/29/2003 3:42:34 PM EDT
[#2]
Most uppers nowadays are small pin. I'm trying to find a big hole upper for my SP1. I can't believe more companies don't make them.

Good luck.

Link Posted: 8/29/2003 5:07:50 PM EDT
[#3]
I just unbarreled a Colt A2 large pin upper today and replaced it with a RRA small pin flat top.  It is unused, except for test firing as far as I can tell.  I got it as part of a larger trade. I was planning on selling it with the original cut bolt carrier group which also appears unused.  I don't know what the value is, but I'll sell it at a fair price.  It's of no use to me.

Jim

Archived [ARCHIVED THREAD] - WTK: Front pivot pin: Large or Small
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