Simple, fast, effective—the VMX-3T Magnifier will work with any red dot sight but it is not recommended for use with prism scopes. The push-button design of the VMX-3T engages and disengages the flip-mount – allowing the magnifier to lock in place resulting in 3x magnified or unmagnified views at will. Optics are fully multi-coated for optimal light transmission. Lightweight and tough, its hard-coat anodized, machined aluminum construction ensures durability. Internally nitrogen purged for reliable waterproof/fogproof performance offering ultimate magnified versatility for virtually any AR-height red dot sight. The VMX-3T allows for lower 1/3 or absolute co-witness mounting heights, and is ideal for shooters who want to increase the effective range of their red dot sight. Waterproof O-ring seals prevent moisture, dust, and debris from getting inside the tube for reliable performance in all environments.