T&S Shell Catcher TS-AL2 for "Beretta AL2, A301/2/3,A390ST, 12Ga. & 391-20Ga." Shotguns. Features: Easy to put on, Easy to take off for doubles, Can be used on another Beretta, made of high quality spring steel & high quality plastic, (fits std. 12Ga. & 391-20Ga. only).