A standard Mini Revolver frame fitted with a 4-inch barrel in 22 LR — a longer-barrel option for buyers who want NAA ergonomics with more velocity and accuracy. Not to be confused with the Mini-Master. Type: Revolver Action: Single-Action Caliber: 22 LR Capacity: 5 Year introduced: 2003, USA Weight: 8 oz Overall length: 7.5" Status: Active Intended use: plinking, small game