Damage Industries has released a new P90/PS90 optic rail with some more real estate. While I personally think it is unfortunate looking it would allow a longer sight radius for iron sights, allow a more forward mounted reflex sight, or give enough space for a magnifier. Not forgetting the flashlight or laser on the six-o-clock rail as well. Originally seen on The Firearm Blog. As the picture states, the $99.99 price is limited.