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Page AR-15 » A2 Builds
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Archived [ARCHIVED THREAD] - Questions about the Colt A4
Posted: 9/12/2017 11:22:14 PM EDT
Are the new ones small pin AKA: work with the Echo 2 trigger?  Is the bolt full auto?  Cant find the answers online.

Link Posted: 9/12/2017 11:27:47 PM EDT
[#1]
Not familiar with the Echo 2 trigger but the new production AR15A4 is .155" FCG pins and a full auto carrier.
Link Posted: 9/14/2017 6:37:04 AM EDT
[#2]
Thanks

Archived [ARCHIVED THREAD] - Questions about the Colt A4
Page AR-15 » A2 Builds
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