View Full Version : AR Experts

July 26, 2012, 03:45 PM
I have a Colt LE6920 and was wondering if I could get a upper for .308 for this. I have read that Colt lowers were different than everyones else.

July 26, 2012, 03:49 PM
No. The LE carbine is based on the much smaller .223 receiver. You'll need the AR 10 size reciever.


July 26, 2012, 03:54 PM
You could buy a 300 Black Out (AAC) upper which is also 30 caliber...

July 26, 2012, 03:58 PM
Colt has a new .308 AR coming out (the 901?) that will convert to 5.56. Otherwise, AR-15s and AR-10s are two different beasts.

It is true that some Colt lowers and uppers aren't fully compatible with milspec trigger/hammer/pivot/takedown pins. Most of these were made before the 1994-2004 AWB and a few years after it sunset.

July 26, 2012, 03:59 PM
Thanks for the feed back. I am new to the AR world.

July 26, 2012, 06:24 PM
The Colt Modular Carbine


My only problem with it is having more parts to haul around and possibly lose.

I am in the process of building a 300 Blackout which uses every AR-15 part except for the barrel.If I was going to get a big caliber AR 10 style would get one in .338 Federal

July 27, 2012, 06:16 AM
Colt has a new .308 AR coming out (the 901?) that will convert to 5.56.

Soon to be the "El Camino" of the AR world. ;)