Rust? around gas ring area
I took out my precision AR from the safe yesterday, and when I went to clear it, I had to apply a lot of pressure to the charging handle to get the bolt move to the rear.
Upon disassembly, I noticed a little rust around the gas rings on the bolt. I immeaditely cleaned the rifle and scrubbed it off, followed by lubrication with Millitech.
This rifle was last used last Friday with 40 rounds of PPV precision ammo and sat in the safe. The forming of rust strikes me as abnormal. What could be causing that? Has anyone else seem a similar issue?
My other AR's that use wolf sit uncleaned for extended periods of time, with no rust yet.