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1/22/2020 12:12:56 PM
Posted: 1/20/2015 1:37:50 AM EST
From what I understand, AR-10 uppers will fit DPMS pattern lowers. Do they work? Any issues, other than the gap? Got any pics? Video?
Link Posted: 1/20/2015 1:50:26 AM EST
quick google image search reveals


Link Posted: 1/20/2015 4:13:08 AM EST
Our own .308 AR FAQ, last edited in 2014

claims that Armalite uppers will fit on DPMS lowers, and that the LPKs are interchangeable, although the takedown pins are different lengths.

This thread from 2010

claims they won't work together, and that the pivot pins are different sizes - which they are, but apparently not in diameter.
Link Posted: 1/20/2015 11:05:10 AM EST
[Last Edit: 1/20/2015 11:06:11 AM EST by Joe731]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By backbencher:
claims they won't work together, and that the pivot pins are different sizes - which they are, but apparently not in diameter.
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I found them to be different diameters. The Armalite holes are a tiny bit smaller than the DPMS pins. You could ream them out, but then it probably wouldn't work with an Armalite lower.
Link Posted: 1/20/2015 12:02:49 PM EST
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Joe731:


I found them to be different diameters. The Armalite holes are a tiny bit smaller than the DPMS pins. You could ream them out, but then it probably wouldn't work with an Armalite lower.
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Joe731:
Originally Posted By backbencher: claims they won't work together, and that the pivot pins are different sizes - which they are, but apparently not in diameter.


I found them to be different diameters. The Armalite holes are a tiny bit smaller than the DPMS pins. You could ream them out, but then it probably wouldn't work with an Armalite lower.


I guess then the question becomes are the centers identical? We already have bushings to adapt large pin lowers to modern uppers, and apparently that's used for POF uppers on DPMS lowers, as well.
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