Sig Sauer 2009/2022/2340 .40s&W /.357 Sig Handgun Magazine - Sigpro Magazine 40 12rd Available in 40 S&W 40 S&W magazines are available in 12 round capacities Steel body Polymer follower and floorplate Mfg: Sig Sauer, Inc. SPECS: Steel. 40 S&W Magazines 12 round capacities. more |