I just noticed in the Bushmaster manual (2005) for XM15 and C15's it states:
Yet Im sure Ive seen 11.5" barrels on AR-15's in the States.
*and yes permanently is spelled wrong in the manual*
Note: ATF regulations require a minimum barrel length of 16" on commercially available rifles and carbines. This 16" length can be a combination of barrel and permanantly fixed (pinned and welded over) muzzle break / flash suppressor as long as the total equals 16"
Yet Im sure Ive seen 11.5" barrels on AR-15's in the States.
*and yes permanently is spelled wrong in the manual*


















































