1950.00 *Excellent* Beretta A400 Xplor 20 Gauge Semi-Auto Shotgun Markham / York Region May 13, 2024 - 10:33 AM hapysardar01 For sale is a Beretta A400 Xplor semi-auto, gas-operated, shotgun in excellent condition. It is a 20 gauge model, with 3" chamber, and 26" Steelium barrel. This model has a beautiful walnut stock and forend, and weights around 6 lbs.