Powerclaw Superior Latching System: Secure and reliable closure Indestructible and Lightweight NK-7 Resin: Durability without the bulk Water Resistant and Dustproof IP65 Rated: Protection against the elements Built to organize, protect, carry and survive tough conditions, the 990 AR15 waterproof gun case is impenetrable and indestructible with a lightweight tough NK-7 resin shell and four (4) PowerClaw latches. With NANUKs exclusive locking and latching system, your case stays shut and secured until you are ready to open it.