WHAT DOES COLT 6921 FOR SALE MEAN?

 Truthfully, I wouldn't shoot one.  Time to maneuver on to a brand new rifle.  Get an LMT or HK if you want army design and style pistons.    Colt has no real interest in assisting you out.  They deserted that challenge in advance of their final individual bankruptcy.Quoted: Around the ALG/Geissele front, They are having an awesome Black Frid