KAC M4 URX | E&C Ultra Line Black Bolt Booster Bundle 3 aluminum buffers for modification

3 aluminum buffers for modification to shorten the cycling

Traxxas pioneered this exclusive technology to eliminate complicated charger programming

Will the Wayfinder of Motunui reconnect all the peoples of Oceania and defeat the underworld goddess

2x Foam Insert

Practical and durable

KAC M4 URX | E&C Ultra Line Black Bolt Booster Bundle 3 aluminum buffers for modificationKAC M4 URX E&C Ultra Line is a full metal gel blaster inspired by the classic KAC M4 design. It features a CNC style URX quad rail, flip up sights, and realistic KAC style markings. Internally, it runs E&Cs Ultra Line gearbox, offering pre installed Programmable MOSFET and Upgraded internals. A solid all rounder for both CQB and field use.