i have 3 puffers, they scrap all the time over food... they're ruthless haha! but you may want to remove some sand... if you ever have a nitrate spike... that's why.... i like your set up!
that has happened to me, the stock design is 3 odd shaped half moon rings that over lap eachother in the bolt carrier group, so i replaced them with a single "spring" style rings, and it's never had a problem again...
if she was really wanting to promote safety with any weapon, treating every firearm as if it were loaded is rule #1, so pointing the barrel up in the air constantly would be incorrect... even in a desert... other than that this was painful to watch
i have a class 3 license, i know what i'm talking about... my brother, on the other hand... does not.. and it would appear that i need to log out of you tube when im not at the computer....
i have 3 puffers, they scrap all the time over food... they're ruthless haha! but you may want to remove some sand... if you ever have a nitrate spike... that's why.... i like your set up!