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AR15.COM
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7/21/2013 1:52:58 PM EDT
Hello all,

I am about to start a build of a left handed AR. Before I get to far into planning I'm wondering if someone can help me out, since this is the first upper I've built (not my first AR).

When using a receiver that ejects to the left, do you have to use a certain type of barrel? Or will any barrel work?  Probably a stupid question but I'd rather ask then buy the parts and not be able to get them together.

I will be using a stag upper, and it will be an SBR.

Thanks for any help.
7/21/2013 2:03:53 PM EDT
[#1]
No special barrel requirement.
Fatkid
7/21/2013 2:50:16 PM EDT
[#2]
well......I' kinda disagree......stag does make a left handed extension......that the locking lugs are beveled opposite what a standard extension is. When I build a lefty upper and use a right barrel.....I remove the extension......polish a bevel on the proper side of the locking lugs in the extension and then retorque the extension......Or my prefered solution is to buy a left hand extension and make a barrel. A left hand bolt on a right hand extension may, and I repeat, may cause accelerated wear on the bolt locking lugs and issues with locking during feeding.
7/21/2013 2:59:49 PM EDT
[#3]
Quote History
Quoted:
well......I' kinda disagree......stag does make a left handed extension......that the locking lugs are beveled opposite what a standard extension is. When I build a lefy upper and use a right barrel.....I remove the extension......polish a bevel on the proper side of the extension and then retorque the extension......Or my prefered solution is to buy a left hand extension and make a barrel. A left hand bolt on a right hand extension may and I repeat may cause accelerated wear on the bolt locking lugs and issues with locking during feeding.
View Quote



http://www.ar15.com/forums/t_3_4/524813_Is_ambidextrous_barrel_extension_absolutely_necessary_for_lefty_build___Tell_me_itandapos_s_not_so________.html

http://www.ar15.com/archive/topic.html?b=3&f=4&t=570838

BCM barrel with Stag LH upper/bolt, AA kit used as a suppressor host.  have around 5k rounds thru it without any issues.


fatkid
AR Sponsor