Basic Information:
| Item Name: | EXTENSION,BARREL |
| NSN: | 1005 - 00 - 731 - 2711, 1005007312711 |
| FSC: | FSC 1005 - GUNS, THROUGH 30MM |
| NIIN: | 007312711 |
Manufacturer Part Numbers:
| Part Number: | 7312711 |
| Manufacturer: | US ARMY ARDEC RDECOM |
| NCAGE: | 19200 |
| Part Number: | 7312711 |
| Manufacturer: | SPRINGFIELD ARMORY |
| NCAGE: | 19205 |