Ballista Tactical Systmem are having their promo of their Nautilus Rotating Rail System which they claim to be the most advanced rail system. The Nautilus can be rotated 360 degrees and thus you can adjust your weapons accessories quickly, especially your reflex sights for short distance shooting. We haven't seen anyone using this for airsoft guns, of there's one who have done it, drop us a message. We want to try this baby and right now it's at 50% off.