Originally Posted by
turnburglar
I might be the wrong person to weigh in on this. Like I grew up on a beach so I am aware how salty it can be, but I spent all my gun time in the most Arid of deserts.
Are you not massively over thinking this? A 6920 should have the same or similar corrosion resistance than what a majority of Navy and USMC units are using. Im assuming they just do a regular inspection and replace parts as neccesary? If you need I can ask a buddy thats a recondo, but I doubt his answer will be different.
My answer; buy parts that are not bare steel, which shouldnt be too terribly difficult. Nitride BCGs and barrels. As mentioned a ALG trigger and LPK would be probably your best bet. I also like the V7 Al castle nut that someone else mentioned. Wouldnt want a rusted castle nut to break and cause a total failure.
Probably overthinking, just looking at improving what's out there, the Corps and Navy have a long supply/support chain behind them. We service our own weaponsz so part of my thought process is putting together the combination of parts to cut down on corrosion even more than what Uncle Scrooge required, and partly just to do it. The aftermarket has all the improved coatings and materials available on AR parts, so it doesn't seem unrealistic to assemble a better mousetrap.
Veteran US Army Combat Medic/US Navy FMF Corpsman
"Well placed gun fire is the best preventive medicine."
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