Home / Semi Automatic / CSA 20 CSA 20 Category: Semi Automatic Product ID: 5660 Description Description CALIBER 20 Ga, 76 mm Chamber RECEIVER 7075 Aluminum BARREL 51/55/61/66/71 Cm 4140 Steel CAPACITY 4+1 Shot STOCK Walnut Related products CSA INTERTIA 20 CSA 17-Exalance CSA M12