what its still around?, page-19

Deman, Colt no longer own or make the Bushmaster rifle from what I see, they are now owned by Cerberus Capital Management.

Firearms - Acquired Bushmaster Firearms, Inc., from Windham, Maine native Dick Dyke for an undisclosed sum in April 2006, and purchased Remington Arms in April 2007. Under Cerberus direction, Bushmaster Firearms acquired Cobb Manufacturing, a well-respected manufacturer of large-caliber tactical rifles in August 2007. Cerberus also acquired DPMS Panther Arms December 14, 2007.[26][27] Remington Arms acquired Marlin Firearms in January 2008.[28][29] In October 2009, Remington Military products acquired silencer manufacturer Advanced Armament Corporation.[30] These companies were combined into the Freedom Group.

http://en.wikipedia.org/wiki/Cerberus_Capital_Management

I do know there was some debate as to whether the Oz DoD should use the Bushmaster instead of the Steyr, there were plenty of pros and cons from both sides, one of the main reasons why the Special Forces use the bushmaster is because their counterparts in the US army do, so replacement parts are easy to get, but from what I am reading the steyr is much more reliable as far as stoppages and broken or worn parts go.