Upper Receivers & Barrels
![Upper Receivers & Barrels Upper Receivers & Barrels](https://www.apexgunparts.com/media/catalog/category/Upper_Receivers_AR15.jpg)
- Colt 604 M16 Upper Assembly, 20" Pencil Barrel, Triangle Handguards, No Ejection Port Cover, 1969-1970, 5.56 NATO *Good*Special Price $1,150.00 Regular Price $1,465.00
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