SHOTGUN: ATA ARMS MODEL ETRO PUMP IMPORTED BY ACADEMY LTD, SERIAL NUMBER SA-82778, BLACK (MATTE), CASE NOT INCLUDED, PUMP, 12 GAUGE, 18 Notes: ATA Arms Etro Pump Shotgun - 12 Gauge The ATA Arms Etro Pump is a pump-action shotgun chambered in 12 gauge. This example features a black matte finish and an 18-inch barrel. Imported by Academy Ltd., it is offered without a case. Manufacturer: ATA Arms Model: Etro Pump Importer: Academy Ltd. Type: Shotgun Action: Pump Gauge: 12 Gauge Barrel Length: 18" Finish: Black Matte Serial Number: SA-82778 Case: Not Included