Here we have a 1999 STO Autococker by Worr Games Products (WGP). It is a full sized cocker but takes evolution length bolts. She is one of the nicer cockers WGP ever created. Would love to have a 98 STO too. ************************************************************************************************************** WHAT IS THAT FRAME AND FRONT END??? It is a PGI FIRESTORM kit. The frame, front end, back end, and bottom line reg all come as a kit(2001-02ish). The bolt is replaced with a spring operated ram/bolt, the hammer is a separately operated spring return ram/hammer.. So with the conversion it is a open bolt marker, like a timmy, impulse, etc.. all electronic components are located in the grip frame or on the front of the marker under the barrel. **************************************************************************************************************** The front is a lpr and electronic valve that releases a puff of air through the stainless air line that runs along the body to the rear block that splits in 2 directions, 1. to the ram/bolt 2. to the ram/hammer. And no, the back block does not move. While it was not a popular design, it seems to be very reliable design, while being a gas hog. Oh yea, they were real beautiful too, lol. PGI made these as complete markers as well (the body resembles a 2k1ish STO) ************************************************************************************************************** WGP STO body in black with blue faded stripe -Ram, NA -3 way, NA -Frame, PGI Firestorm -Barrel, Freak -Bolt, Firestorm kit -Pull Pin, NA -Ram, NA -Regulator, PGI Female bottom line style that came with firestorm kit -Hammer, Firestorm kit (Spring returned ram/hammer) -Valve, Stock WGP -Cocking Rod, NA -Ball Detent, ??? -Beaver tail, NA Kmac