The Masada modular assault rifle was developed by Magpul Industries, a US company, as a private venture. Initially this new weapon was intended to enhance the features of the M16 rifle. It is worth mentioning that in 2006 a project based on the M16 has been abandoned and Magpul Industries restarted it from scratch. Prototypes were revealed in 2007. The new rifle was named after the Siege of Masada. In 2008 it's production was taken over by Bushmaster.
The key idea of the Masada's modular system, that it will provide a wide variety of configurations within
the matter of minutes in field conditions. Magpul Masada Assault Rifle It is a gas operated, selective fire
weapon with modular design. The Magpul Masada has several features of other recent designs, such as the M16 and FN SCAR. This multi-caliber weapon is available chambered in 5.56 x 45 mm standard NATO ammunition or 7.62 x 39 mm Soviet ammunition.
It allows to fire the enemy ammunition with the alternate barrel and lower receiver. It can be easily converted from a standard assault rifle into carbine or dedicated marksman rifle without any tools. Designed and built by the Magpul design team in approximately 4 months as an experiment in firearms design, the Masada™ is an evolution of proven technologies in a lightweight package optimized for mass production.
The Masada™ Adaptive Combat Weapon System is rapidly reconfigurable for length, caliber, magazine compatibility, stock type, and fire-control setup. Core features include a gas-piston operating system, tool-less quick-change barrel system, multi-adjustable folding stock, and integrated storage. Transition from the M16 weapon series is facilitated with similar control placement and function of many critical controls thus requiring minimal re-training. Backward compatibility with a number of AR-15/M16 parts allows for a wide variety of custom configurations using commonly available components.