This Winchester 37A is a 12 gauge single-shot shotgun with a 3-inch chamber and a 30-inch full-choke barrel. This shotgun is in used condition. Photos represent the exact item offered and should be reviewed for its condition and visible details. Specifications: - Manufacturer: Winchester - Model: 37A - Gauge: 12 gauge - Action: Single shot - Chamber: 3 inches - Barrel Length: 30 inches - Choke: Full - Condition: Used