A four-barrel over-under derringer — two sets of stacked barrels on one frame. The Model 4 provides four shots in 45 Colt or 410 shotshell before reloading. Bulkier than the Model 1 but doubles capacity. Type: Derringer Action: Break-Action Caliber: 45 Colt / 410 Bore Capacity: 4 Year introduced: 1985, USA Weight: 16.5 oz Overall length: 6" Status: Active Intended use: concealed carry, hunting