Iver johnson choke tube 20ga.Rifled mobil choke extended Other Features: Mobil choke style threads
Specifications:
| Thread Pattern | Mobil |
| Material | Steel |
| Flush Or Extended | Extended |
| Choke/id | Rifled |
| Gauge | 20ga |
| Dimension | 0.95 X 1.00 X 4.00 |
