Chuck Plissken Posted December 15, 2017 Report Share Posted December 15, 2017 Built my own 308 based AR with mostly Aero Precision Stuff. First build in the 308 platform for me but many on the 5.56 small AR. After around 100rds and a few issues I disassembled the bolt to clean the extractor and to inspect it. Found 2 o-rings stacked instead of the standard 1 that I've always seen... Anyone else seen this? Took out a o-ring and put 40 more rounds down it and does great. Atleast I think it does. Brass ejects around 2-3 o'clock (right handed) I think before it was similar spread. Quote Link to comment Share on other sites More sharing options...
survivalshop Posted December 16, 2017 Report Share Posted December 16, 2017 Some Manufacturers seem to like o-rings , the two Spring set up that DPMS uses on the LR series works fine . Quote Link to comment Share on other sites More sharing options...
308kiwi Posted December 16, 2017 Report Share Posted December 16, 2017 (edited) Both of my 308 Aero BCG's have 2 o-rings under the extractor, both work just fine, I live by the old "if it aint broke then leave it the F**K alone" motto otherwise you could be doing this........... Edited December 16, 2017 by 308kiwi Quote Link to comment Share on other sites More sharing options...
Chuck Plissken Posted December 16, 2017 Author Report Share Posted December 16, 2017 14 hours ago, 308kiwi said: Both of my 308 Aero BCG's have 2 o-rings under the extractor, both work just fine, I live by the old "if it aint broke then leave it the F**K alone" motto otherwise you could be doing this........... Good to know. I will run both of them. Quote Link to comment Share on other sites More sharing options...
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