These new old stock (NOS) “M16A1 Carbine” upper receiver groups were built by Colt in the late 1960’s and intended for use in Southeast Asia.These are true collector pieces with 1/12 twist 14.5 inch carbine barrel assy and M16A1 upper receiver assy – finished in the old “Colt Gray” anodizing.Each unit comes with the upper receiver group, charging handle and M16A1 bolt group.If you own a select-fire Colt M16A1 rifle, these are the original factory carbine components to create a Vietnam LRRP carbine.
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