The ASG Flip-Up Acrylic Lens Protector is a high-quality airsoft accessory that is designed to protect your optics from BB impacts and debris. It is made from durable acrylic material that can withstand impacts from airsoft BBs, and features a flip-up design that allows you to easily access your optics when needed. The lens protector also comes with a Picatinny mount that allows for easy installation onto your airsoft gun. This accessory is perfect for airsoft players who want to protect their valuable optics during intense gameplay.