Colt 604 M16 Upper Assembly, 20" Pencil Barrel, Chrome Bore, A2 Handguards, 1970-1971 Production, 5.56 NATO *Good*

Colt 604 M16 Upper Assembly, 20" Pencil Barrel, Chrome Bore, M16A2 Round Handguards, 1970-1971 Production, 5.56 NATO, in *Good* condition.

Sold Individually.

Own a part of history with this early Colt Manufactured upper assembly!
Numbered rear sight dail with raised arrow directional marker on the receiver.
Barrel is marked "C MP B" for Colt Magnetic Particle Chrome Bore.
Colt proof marks on the front right side of the slab side receiver.
M16A2 style round handguards.
Original slabside type upper receiver, forged front sight base with the drain hole, and birdcage flash hider.
Later style forged front sight base is "C" and Bell marked, with drain hole.
Lower assembly, FCG parts and buttstock are NOT included.
Chrome lined bore is in *Good* condition with moderate signs of wear.
Small hole front pivot pin.
Early gray color receiver may be faded and worn.

This Upper Assembly includes:
- M16 A2 round handguards and straight barrel nut assembly.
- Forged type front sight base, "C" marked.
- Early L shape 2 aperature rear sight with windage adjustment. 
- M16 carry handle upper.
- 20" pencil barrel with with birdcage flash hider.
- Late bend gas tube.

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.