These are being closed out, because the manufacturer would prefer authorized sellers. We unlike the many eBay sellers that still sell these, are respecting their wishes and putting these up for closeout sale.
The lighted Nockturnal-X nock makes tracking one's shot almost too easy. With its patent pending string activation switch, the Nockturnal-X is unparalleled in its reliability.
Lightweight, dependable and highly visible, with a shot-activated switch that won’t turn off until reset by the archer. Made of clear plastic, the nock provides maximum light transmission and can be seen for hundreds of yards. The breakthrough design weighs 25-50% less than other lighted nocks. Installation requires no glue or magnets. Battery lasts up to 20 hours.
Fits slim arrows with X nocks such as Easton Axis and Full Metal Jacket, Beman MF, Trophy Ridge, Carbon Impact HOT and Easton ACC.