Armscor Rock Island Armory FS/MS MAP1 16 RD 9mm or 22TCM 9R magazine 56055. This is a Tanfoglio factory small frame magazine, sold by Armscor.
The magazines also fits the Tanfoglio TZ 75, EAA Witness Small frame, Tanfoglio TA90, (Not for the pre 88 series models, the pre B CZ 75 factory magazines should work in those.), EAA Witness PS, Springfield Armory P9, Jericho 941 (also imported as the Uzi Eagle, Baby Eagle and the Desert Eagle Pistol built with Tanfoglio supplied parts, (a Tanfoglio CZ 75B clone), Baby Desert Eagle III, ITM AT-84 and Armalite AR-24.
THIS MAGAZINE DOESN'T FIT THE ROCK ISLAND ARMORY 1911 A1 OR 1911 A2.