A portable gas cylinder (10, 210) comprising: a gas tank (12, 212) having an upper portion (18, 218) having a valve port (20, 220); and a handle assembly (14, 214) attached to the gas tank (12, 212), the handle assembly (14, 214) having a shroud (40, 240) and a handle (42, 424) attached to the shroud (40, 240); wherein: the gas tank (12, 212) has a collar (22, 222) surrounding the valve port (20, 220), the collar having a plurality of circumferentially spaced openings (28, 228); the shroud (40, 240) of the handle assembly (14, 214) has a plurality of circumferentially spaced body portions (44, 244), a first plurality of circumferentially spaced deflectable fingers (48, 248) extending downward in a first direction that are each engaged with a respective one of the plurality of circumferentially spaced openings (28, 228) in the collar (22, 222) to attach the shroud (40, 240) to the collar (22, 222), and a second plurality of circumferentially spaced deflectable fingers (50, 250) extending upward in a second direction; the handle (42, 242) of the handle assembly (14, 214) has a body (100, 300) that surrounds and abuts the shroud (40, 240), and a plurality of circumferentially spaced openings (64, 264) extending through the body (100, 300); wherein the second plurality of circumferentially spaced deflectable fingers (50, 250) are engaged with a respective one of the plurality of circumferentially spaced openings (64, 264) in the handle (42, 242). a gas tank (12, 212) having an upper portion (18, 218) having a valve port (20, 220); and a handle assembly (14, 214) attached to the gas tank (12, 212), the handle assembly (14, 214) having a shroud (40, 240) and a handle (42, 424) attached to the shroud (40, 240); wherein: the gas tank (12, 212) has a collar (22, 222) surrounding the valve port (20, 220), the collar having a plurality of circumferentially spaced openings (28, 228); the shroud (40, 240) of the handle assembly (14, 214) has a plurality of circumferentially spaced body portions (44, 244), a first plurality of circumferentially spaced deflectable fingers (48, 248) extending downward in a first direction that are each engaged with a respective one of the plurality of circumferentially spaced openings (28, 228) in the collar (22, 222) to attach the shroud (40, 240) to the collar (22, 222), and a second plurality of circumferentially spaced deflectable fingers (50, 250) extending upward in a second direction; the handle (42, 242) of the handle assembly (14, 214) has a body (100, 300) that surrounds and abuts the shroud (40, 240), and a plurality of circumferentially spaced openings (64, 264) extending through the body (100, 300); wherein the second plurality of circumferentially spaced deflectable fingers (50, 250) are engaged with a respective one of the plurality of circumferentially spaced openings (64, 264) in the handle (42, 242). the gas tank (12, 212) has a collar (22, 222) surrounding the valve port (20, 220), the collar having a plurality of circumferentially spaced openings (28, 228); the shroud (40, 240) of the handle assembly (14, 214) has a plurality of circumferentially spaced body portions (44, 244), a first plurality of circumferentially spaced deflectable fingers (48, 248) extending downward in a first direction that are each engaged with a respective one of the plurality of circumferentially spaced openings (28, 228) in the collar (22, 222) to attach the shroud (40, 240) to the collar (22, 222), and a second plurality of circumferentially spaced deflectable fingers (50, 250) extending upward in a second direction; the handle (42, 242) of the handle assembly (14, 214) has a body (100, 300) that surrounds and abuts the shroud (40, 240), and a plurality of circumferentially spaced openings (64, 264) extending through the body (100, 300); wherein the second plurality of circumferentially spaced deflectable fingers (50, 250) are engaged with a respective one of the plurality of circumferentially spaced openings (64, 264) in the handle (42, 242).