Mossberg's SA-20 uses a smooth cycling, gas-operated system for a lightweight, soft-shooting 20 gauge shotgun perfect for both hunting and target shooting. This All-Purpose Field model has a black synthetic stock with a 14.25" LOP, 26" vent rib barrel with a matte blued metal finish, and a metal bead front sight. It includes Mossberg International's Sport Set of (5) choke tubes.
| Choke Configuration | Sport-Set |
| FireArm | yes |
| Weight Range | 5 lbs to 5.99 lbs |
| Chamber | 3" |
| Receiver Description | Steel |
| Action | Semi-Auto |
| Weight | 5.75 lbs |
| Chokes Included | 5 |
| Capacity | 4+1 |
| Stock Description | Fixed |
| Hand | Right Hand |
| Stock Finish Group | Black |
| Metal Finish Group | Blued/Black |
| OAL | 44.50" |
| Sights | Bead |
| Safety | Crossbolt |
| Barrel Description | Vent Rib |
| Gauge | 20 Gauge |
| Barrel Length | 26" |
| Barrel Length Range | 26" to 26.99" |
