I purchased this case for my husband so he could easily have his AR, ammo & his other swat gear all together. He carries this bag with him to all of his trainings & on search warrants. It has held up to the most rugged atmosphere without any problems. The inside is perfectly made to hold the guns that he needs & the many pockets on the outside helps to keep his ammo, knife, 1st aid kit etc perfectly in place & organized. Whatever this bag is made out of is high grade & will withstand anything. Good job designing this bag.