The McMillian ALIAS is a 5.56mm bolt rifle action system comprised of modular components. The two part receiver resembles an AR-15. The system comprises of a few different foreends, barrel and stocks. Any AR-15 magazine and pistol grip can be used with the ALIAS.

As well as being sold as modular parts, the rifle will also be sold in a number of standard configurations. The version of the rifle I shot (pictured above) was the ALIAS CS5-Q. It features a 12.5″ barrel, collapsable quick-detach butt stock, quad picatinny rail and a suppressor. With the stock and suppressor detached it is only 23.5″, small enough for a backpack.