Original Colt AR .223 M16A1 Parts Kit - Vietnam Era - Grade B

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Here are the specs


Grade B - Stock is cracked, and in fair serviceable condition. Butt plate may have a small piece chipped off. All metal parts of the butt stock are present and in good condition. Triangle handguard is in fair to good condition: may have a crack and/or missing teeth. Metal parts are fair to good. Small pins and springs may be missing. Clear organizer is NOT included.

These Colt M16A1 Kits can be used to turn an existing AR-15 rifle into a vintage looking M16. These kits can also be used as a replacement parts set for an existing M16A1 rifle. Upper receiver and bolt are complete.


  • Original Triangular Handguard
  • Original Tear Drop Forward Assist
  • Original Complete Upper Receiver with Handle
  • The letter 'C' on the Complete BCG


  • Vietnam-era original Colt M16A1
  • Kit is complete except for lower receiver and barrel (some small parts may be missing)
  • Stock is in good serviceable condition
  • Butt plate may be cracked
  • Triangle handguard is in fair to good condition (may have a crack and/or missing teeth)
  • All parts are serviceable
  • BCG is Colt marked

Kit includes:

  • A1 complete upper with carrying handle assembly with rear sight windage drum, tear drop forward assist assembly
  • Trigger guard assembly
  • Complete bolt and bolt carrier assembly
  • Charging handle, latch, latch pin and spring
  • Receiver pivot pin and screw
  • Buttstock with rear swivel assembly, buffer tube, buffer spring and buffer assembly
  • Pistol grip, grip screw and lock washer
  • Bolt catch paddle
  • Front site base and bayonet lug assembly/gas port with forward sling swivel and taper pin
  • Flash hider and crush washer
  • Upper and lower handguard
  • Triangular handguard cap
  • Handguard delta ring with snap ring

These parts may or may not be included:

  • Ejection port cover assembly
  • Trigger, trigger pin and trigger spring
  • Hammer, hammer pin and hammer spring
  • Semi-auto disconnect
  • Magazine release button, catch and spring
  • Bolt catch
  • Take down pins, rear and front, with spring and detents
  • Safety/selector lever
  • Gas tube and pin

1 Review Hide Reviews Show Reviews

  • 5
    Good kit, good price

    Posted by DummyDuhast on May 26th 2020

    I have been wanting one of these parts kits for a long time and I finally pulled the trigger on this one. Received all the parts minus barrel, lower receiver and auto sear. Rifle turned out looking excellent and functions flawlessly. I especially like the well used but cared for condition. Recommended this kit for sure.