King Arms - MK18 TWS Bullpup ( GBBR )

The King Arms MK18 TWS Bullpup (GBBR) is a conversion kit that brings a futuristic style and enhanced ergonomics to the AR15 platform. With an important safety warning that it must not be installed on real firearms, this airsoft-specific system is engineered for GBBR performance. Its patented trigger linkage improves responsiveness and supports most AR15-standard triggers. The kit also accommodates various aftermarket upgrades such as short-stroke bolts, selectors, and grips—offering extensive customization flexibility. Featuring broad compatibility with mil-spec AR15 receivers, the MK18 TWS Bullpup stands out as a high-end option for players seeking a unique and innovative bullpup configuration.