DUNS #: 618341080

Original COLT M16 A1 Barreled Upper

Part #: M16A1-Barreled-Upper
Retro, builders unicorn. Original Colt M16A1 barreled upper. Has SP1 front larger pin hole, so you will need the commonly available adapter to use on our M16A1 lower. Upper marked with a "CH". In unissued excellent condition. New barrel for the M16 A1 marked “C MP B” on front of barrel. Chrome lined and chambered, 1 in 7 twist. This is a very early production new M16 turned in to DRMO for destruction. Very early ejection port door. Note that it needs the front sight pins drilled.


Perfect for finishing your M16 build project.

- Grey phosphate finish
- Slick side upper - no forward assist
- 20 inch length barrel
- 0.625" diameter for gas block
- A1 "pencil" profile
- 1 in 7 twist
- Caliber 5.56 NATO
- Chrome lined and chambered
- With gas tube.
- Includes sight tree, front delta, front & rear sights and flash hider, handguard retainer (very early).
- Colt marked fire control set (5 pieces )
Caliber: 5.56 MM
Country of Origin: US

Availability: Out of stock


M16A1 Upper Set

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  • Ejection Door
  • M16 Upper Top View
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  • M16A1 Upper Set