This is a Rotary” Detachable high capacity magazine that holds 8″ 12″ or 16 rounds of either 2-3/4 or 3 inch shotshells. It fits the SRM 1216 and provides unsurpassed firepower” force multiplication” and tactical advantages.
SRM Arms Magazine, 12Ga, 16Rd, Flat Dark Earth Finish, Fits SRM M1216 SRM1216MSS