model 6600. green label. features 20inch full heavy barrell and bayo lug.A-2 sights with forward assit. i am the original owner. have fired it twice, approx. 80 rounds through it. has been meticuiously maintained and is as close to new as it can be. includes original fact. 20 round mags(2)and fact. colt marked leather sling. Mass. compliant. sorry never kept the box. ser. no. SP232XXX. must ship to valid F.F.L. cert. check or money order please. i have another G.A. reference that is available upon request. price lowered.