The Zelos is a bullpup PCP that stuffs 26 inches of barrel into a compact 36 inch package. The natural result of such a long barrel length is power and accuracy with the added convenience of a very easy handling bullpup platform. The Zelos in .25 caliber utilizes a 18 round auto-indexing rotary magazine and features an on-board tank that fills to a maximum pressure of 3625 PSI. This 250cc tank is free-floated from the barrel and fitted with an 8-slot Picatinny accessory rail. Zero in your favorite optic on the 21-slot top Picatinny rail and start sending pellets downrange with precision.