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7/12/2011 11:27:27 AM EDT
I am thinking about getting a Armalite LEC 15 A4 CBK.
I can not do a search yet and was wanting to know if this is a goof rifle.
Will the gas system be any problem?
Is the barrel maid out of 4140 or 4150?
Is the BCG chromed or plain.

Thanks in advance
7/12/2011 11:34:51 AM EDT
[#1]
Armalite is generally goof, good to go. The barrels are the highly desired 4150 mil-std 11595E steel and double lapped. The bcg is standard phosphate coated but chrome lined in the middle where the bolt and firing pin go.

ETA: It doesn't come with a maid. You have to clean it yourself.

Posted Via AR15.Com Mobile
7/12/2011 11:48:54 AM EDT
[#2]
Here's a recent thread.

The barrel steel is 4150, and the carriers are chrome-lined.
7/12/2011 7:15:07 PM EDT
[#3]
Thanks everyone even if I did goof
7/12/2011 7:34:31 PM EDT
[#4]
Quoted:
Thanks everyone even if I did goof

You're welcome.
7/12/2011 8:01:57 PM EDT
[#5]
The barrel is neither 4140 or 4150.
It is mil-spec CMV (chrome-moly-vanadium).
This information is available on Armalite's web site.

7/12/2011 9:38:27 PM EDT
[#6]
'08 Review.
7/12/2011 10:13:13 PM EDT
[#7]
I just love this place.
Quoted:
The barrel is neither 4140 or 4150.
It is mil-spec CMV (chrome-moly-vanadium).
This information is available on Armalite's web site.





Posted Via AR15.Com Mobile
7/13/2011 10:50:19 AM EDT
[#8]
I did a google search Search on the 4140, 4150 and cmv.
Looks like you can use either steel and add cmv
Here is where I got the info  http://www.m4carbine.net/showthread.php?t=37
Thanks again
7/21/2011 2:41:34 PM EDT
[#9]
I bought one of the 16" M4 LEC uppers in 2007, i think.

Very nice fit and finish. Completly reliable for me so far.

The only issues I have with it are poorly staked gas key, 1:9 twist, FSB is not F-Marked.

That said its been completly reliable

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