STI Eagle 5.1 in 40 S&W. The 40 S&W Eagle 5.1 was the primary IPSC Open division gun for US competitors through the late 1990s and early 2000s, before 38 Super with major power factor loads became dominant. The combination of the 5.1-inch bull barrel and the 40 S&W cartridge provided excellent accuracy and consistent major power factor. Type: Pistol Action: Semi-Automatic Caliber: 40 S&W Capacity: 14 Year introduced: 1994, USA Weight: 39 oz Overall length: 9" Status: Discontinued Intended use: IPSC Open, IPSC Limited, Competition