Fans of the hit sci-fi series "The Expanse" can lay their hands again of the bullpup rifle used the series, the APS Urban Assault Rifle (UAR) bullpup AEG. Released a decade ago, the APS UAR AEG is an original design of the Hong Kong-based company and it is also its first complete AEG. This version now comes with the Silver Edge Ver 3 Gearbox... "Open Box of APS Bullup AEG Rifle UAR501. It comes with 2 magazines, Long one is 300rds, short one is 190rds. It also comes with 2 main springs. It is easy to change by the QD spring guide inside the buttstock. Black and Tan color available."