User blog comment:BlizzardOfOz123/Scavenged M1919/@comment-1330314-20110518211853/@comment-3579040-20110519152650

They aren't really upgrades, as apposed to something that helps with the weapons ease of use. And the Gyroscopic Barrel completely eliminates the crosshairs from getting any larger. The bullets will never stray. The tripod only reduces the rate at which the crosshairs grow.