Descriptions: 

• PVS31 Lens Cover – Rugged Protection & Precision Focus for Night Vision Devices
• The PVS31 Lens Cover is purpose-built to protect and enhance the performance of night vision devices . Engineered from rugged 6061-T6 aluminum, this precision-built cover ensures long-term durability in demanding field conditions.
• Unlike traditional friction-fit caps, it secures directly to the objective lens threads for a firm, no-slip fit. An internal O-ring effectively seals out dust and moisture, while a sacrificial polycarbonate lens protects your optics from scratches and impact — making it ideal for tactical and outdoor environments.
• The standout feature is its adjustable aperture, a patent-pending system that allows users to fine-tune light transmission and focus with ease.  Whether you're operating under shifting lighting or sudden exposure, this system offers unmatched control and adaptability.

Features:

• Durable 6061 T6 Aluminum Housing
• Anodizing conforms to MIL-A-8625F Type II Class 1 and Class 2 Standard
• Securely mounts to the objective lens to avoid accidental removal
• Polycarbonate sacrificial lens for 92% light transmission
• O-ring for keeping debris out
• Adjustable Iris that goes from 1mm to 23.5mm
• Sacrificial lens holder can accept aftermarket accessories for pvs-14 style lens such as LIF or sacrificial lenses with an outside diameter not exceeding 32.4mm
• Will fit on any PVS-31 objective lenses

Package included:
1X NVG CAP

Note:

• If you receive a package and have any questions or other issues with the item, please contact us by email in a timely , and we will provide a satisfactory solution. Please do not submit return requests or leave negative reviews at will.
• Please do not disassemble it without authorization.
• About returns, please return the original product and accessories in their original packaging. If you falsify a return reason to return shipping, we will be reported to ebay.