7-round Sig Sauer P938 9mm Magazine. Increase your capacity! This high-quality Magazine fits Sig Sauer P938 pistols chambered in 9mm. It's constructed from durable stainless steel and features a 7-round capacity. Get yours here for LESS! Features: Fits Sig Sauer P938 pistols chambered in 9mm 7-round capacity Stainless steel construction Order yours today!