I also would not suggest leaving the weapon stored with the charging handle locked back either in my opinion.
To be honest I have never really ever locked my bolt back, other than when rifle locks it back after the last round ejects. I either then put in another magazine and release the bolt or if I am done I unlock the bolt and flip the dust cover back up for storage.
To be honest I have never really ever locked my bolt back, other than when rifle locks it back after the last round ejects. I either then put in another magazine and release the bolt or if I am done I unlock the bolt and flip the dust cover back up for storage.