Stoeger 34094 STR-9SC Sub-Compact 9mm Handgun Magazine w/ Pinky Extension – 10 Rounds – STR-9SC Sub-Compact Magazine, 9mm 10 Round w/ Pinky Extension. This 10-round magazine is constructed for the STR-9SC Sub-Compact semi-automatic striker-fired pistols chambered in 9mm. This magazine is capable of holding 10 rounds of live ammo and features a nickel-plated finish and a durable pinky extension floorplate. This quality Stoeger mag is great for reducing load times and is perfect for training, competing, and defending.