I always enjoy watching the weekend warrior guys show up with their $4000 worth of M4 and accessories that are the first ones to panic and want to leave the range if it starts to drizzle.   The idea that your $4000 rifle will some how get ruined in the rain and the majority of firearms like it are expected to be combat reliable.   Well… what is combat reliability?  Combat reliability is a gun that will take a level of abuse in bad weather and dirty conditions without malfunctioning.  If you have a military issued rifle, the gun better darn well be combat reliable and a little bit of rain shouldn’t concern you.

Combat optics are are also given this description because they better take the abuse and still hold zero.  The gun should work if it gets dropped and the glass better not break.   I’ve retired a few rifle scopes because they would fog up and I learned the lesson of wiping all of my hunting rifles down with a light amount of CLP whenever I brought them back from a trip. Take your gun cases and your firearms out on a day when the weather isn’t that great and have some confidence.   A good nylon rifle case should protect your firearms from moisture and dirt and there’s nothing to cry about if you know your gear.