Basic Information:
| Item Name: | RECEIVER,UPPER |
| NSN: | 1005 - 00 - 017 - 9550, 1005000179550 |
| FSC: | FSC 1005 - GUNS, THROUGH 30MM |
| NIIN: | 000179550 |
Manufacturer Part Numbers:
| Part Number: | 62306 |
| Manufacturer: | COLT DEFENSE LLC |
| NCAGE: | 13629 |
| Part Number: | 8448603 |
| Manufacturer: | US ARMY ARDEC RDECOM |
| NCAGE: | 19200 |