Colt 604 M16 Parts Set, 20" Barrel, 3-Prong Flash Hider, M16 Buttstock & Pistol Grip, Slickside Carrier, Grey Finish, 5.56 NATO *Very Good*

Colt 604 Parts Set, 20" Barrel, 3-prong flash hider, triangle handguards, M16 style buttstock and pistol grip, straight barrel nut, early grey finish, 5.56X45 NATO, in *Very Good* condition.

Sold Individually.

Own a part of history with this early Colt Manufactured upper assembly!
Possible years of production on this assembly are between 1969 and 1970.
Complete less the lower receiver and auto sear.
M16 buttstock assembly and pistol grip.
Numbered rear sight dial with raised arrow directional marker on the receiver.
Front sight is round post, with front sling swivel.
Barrel is "C MP C" marked near the muzzle, for chrome chamber (not chrome bore).
Colt proof marks on the front right side of the early slick side receiver.
Early slickside bolt carrier assembly with chrome, early staked, gas key.
Bolt is marked for magnetic particle inspection.
Triangle handguards are in good shape.
Straight barrel nut assembly.
Original slab side type upper receiver, slickside carrier, forged front sight base with the drain hole, and 3-Prong "Improved" flash hider.
Non-chrome lined bore is in Very good condition.

Parts must be inspected and tested by a qualified and competent gunsmith or armorer before use in a firearm.
Not all firearm parts are interchangeable; use of surplus parts without proper knowledge could cause a firearm to malfunction and cause property damage, injury or death.