The XMAR Program is a military project funded by the USNA Military to replace the aging M-16 Assault Rifle. Prototypes are currently being developed and the project is to be completed around 2011. The Rifle is currently much improved over the M-16 in regards to every category. It is much more accurate and reliable as well as more powerful. It is made up of a composition of aluminum, steel, and composite plastics. While the barrel and other vital areas are made of steel & aluminum the other parts are composed of a extremely strong polymer plastic. It is much more expensive than the M-16 but is projected to be more cost effective over time as the expected lifespan is over 60 years.