The Model 1000 was available in 12-gauge and 20-gauge, with trap (1000T) and skeet (1000S) variants. Both gauges were offered with 2+3⁄4-inch (7.0 cm) chambers; the 12-gauge was also sold with a 3-inch (7.6 cm) chamber for magnum shotshells.[1]
The Model 1000 was offered by Smith & Wesson from 1973 to 1985.[3] It was subsequently sold by Mossberg for a few additional years.[4][5]
^"Turner's (advertisement)". The News-Pilot. San Pedro, California. September 16, 1987. p. D3. Retrieved June 28, 2020 – via newspapers.com. MOSSBERG 1000 12 Ga. SHOTGUN (Formerly Sold As Smith & Wesson 1000)