I had a Colt MT6601 that I did not clean the chamber before firing the very first round and the case stuck.
I now always thoroughly clean the chamber on new AR’s before firing including my Sport II that has ran flawlessly.
A .22 patch won’t do it, you need a .223 chamber mop or sell engineered method. A .38 to.45 cal pistol mop works too.
Last edited by Buckshot Barry; 04-23-2022 at 07:10 PM.
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