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Mfg Item #: PEAPGG4PLUS
This unit adds capacity to Generation 4 & 5 Sub-Compact, Mid, and Full Size Glock high capacity magazines. This magazine extension replaces the original floor plate and internal locking plate and adds two rounds to a 9mm; two rounds to a 40SW and 357SIG, and one round to a 45GAP magazine. This unit will not fit the 10mm or 45ACP models. NOTE: Will fit Glock 17, 19, 26, 34, 43, 45, 48, 22, 23, 24, 27, 35, 31, 32, 33, 37, 38 & 39 Gen4-5.