Alvan Lee of UAC sends in news about their new release, a Fibre Optic Sight for the Marui or WE Airsoft G17 Gas Blowback Pistol... "UAC launched a new design Fiber Optic Rear Sight For TM/WE G17 - was constructed by precision CNC, with aircraft-graded 6061 aluminum. Hard black anodized finish increase the durability and anti-scratch ability. “Perfect Dot” design allow a perfect fiber dot can be formed. Increasing visibility of the fiber optic sight picture.