Technical Information

Magazine Capacity

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All STI Magazines are measured by overall length. Below is a table that breaks down each of the available magazine lengths and their capacity by caliber.

Length/Caliber 9mm / .38 Super .40 S&W / 10mm .45 ACP
120mm (For VIP Length Pistols only)  16 Rounds  14 Rounds  10 Rounds
126mm 17 Rounds 15 Rounds 11 Rounds
140mm 20 Rounds 18 Rounds 13 Rounds
170mm 27 Rounds 23 Rounds N/A