To achieve a light, robust product, gun sights are manufactured in black matt anodised aluminium alloy.
Optical combinations are optimised using dedicated software.

The lens concept (close to the axis) ensures superior resolution.
Multi-layer lens treatment ensures excellent transmission and eliminates all undesired reflection.
Sealing by means of a glued o-ring receives special attention, 100% validated by immersion testing.
Continuously monitored assembly process taking place in clean under-the-hood environments and finished off with nitrogen over-pressure testing to guarantee impeccable lens cleanness.

Elite sharpshooter units employ hundreds of our LTE lenses. The French Army is equipped with more than 4,000 J4 lenses.