Is there a compiled list somewhere of AR-15 caliber conversion uppers?


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greenr18
January 4, 2012, 07:41 PM
Is there a compiled list somewhere of AR-15 caliber conversion uppers and what company makes said upper for said calibers?

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68wj
January 4, 2012, 11:24 PM
I am sure there is, but some of the more commonly discussed from the ole' rememberer:

.22 Lr
5.7
.204 Ruger
6.5 Grendel
6.8 SPC
.300 BO/.300 Whisper/etc
7.62x40 WT
7.62x39
.450 Bushmaster
.458 SOCOM
.50 Beowulf

Then there are some WSSMs, BRs, shotguns, and LOTS of wildcats. For manufacturers, it depends. I know the 6.8 SPC has a good long list, and most of them also make the .300 now too.

desidog
January 5, 2012, 02:43 PM
^ that, and these too

-7.62x25
-9mm

Saakee
January 5, 2012, 03:14 PM
.45 ACP
.50 BMG (though not sure if this should count since it either uses a sideloading mag or is single shot)

mongo4567
January 5, 2012, 05:48 PM
5.45x39

7.62 Nato
January 5, 2012, 06:02 PM
6x45
25x45
25-223
7.62x40

TXSWFAN
January 5, 2012, 07:55 PM
Olympic Arms makes a 10mm upper.

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